In general, how do many human activities influence the carbon cycle?
Answers
Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.
Explanation:
Carbon moves from the atmosphere to plants. ...
Carbon moves from plants to animals. ...
Carbon moves from plants and animals to soils. ...
Carbon moves from living things to the atmosphere. ...
Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...
Carbon moves from the atmosphere to the oceans.
Related Questions
what is natural selection not based on
Answers
Answer:
Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which species change from generation to generation, and is a crucial element of the theory of evolution.
Explanation:
An organelle that releases energy for metabolic activity in a nerve cell is the...?
Answers
Answer:
Mitochondria
Explanation:
Mitochondria is an organelle that creates energy in the form of ATP in all living cells.
How would you choose between two characteristics to be used for developing a hierarchy in classification?
Answers
We select the essential traits of a number of other traits to create a hierarchy of classification. By deciding on the fundamental characteristic, living things a large scale because the subsequent level .
What is the major characteristic of a hierarchical database?As suggested by the name, databases used in hierarchical database systems contain records that are organised in a parent-child and tree-like form. For a single parent node, there may be one or even many child nodes. Yet, a child node can only have single parent node.
What traits define a culture of hierarchy?Corporate cultures that follow a rigorous hierarchy and where decisions are taken at the top-down are known as hierarchical cultures. It is built on an organisational chart with distinct lines of authority, communication, and accountability that prioritises some positions above others.
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Methylation of ? decreases gene transcription and is the basis of imprinting. G followed by C nucleotides G followed by A nucleotides C followed by G nucleotides C followed by T nucleotides
Answers
Methylation of C followed by G nucleotides decreases gene transcription and is the basis of imprinting. Methylation is a fundamental mechanism for regulating gene expression, genomic imprinting, and development.
It refers to the transfer of a methyl group from S-adenosylmethionine to a nucleotide, usually cytosine, in the context of DNA methylation. There are specific CpG dinucleotides, where cytosine and guanine are located next to each other in DNA, that are often methylated in mammals. Methylation of these sites is linked to a variety of biological processes, including gene expression, epigenetic regulation, and development. Methylation at specific CpG sites is also a key feature of genomic imprinting, which refers to the parent-of-origin-specific expression of genes. In general, methylation of CpG sites in gene promoters is associated with gene silencing, while hypomethylation is associated with gene expression.
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The chromosomes of offspring are not identical to those of their parents or siblings because ______ is shuffled during meiosis.
Answers
The chromosomes of offspring are not identical to those of their parents or siblings because genetic information is shuffled during meiosis.
Meiosis can be described as a cell division process by which gamete cells divide. The number of chromosomes is reduced to half in this cell division process.
During the process of meiosis, genetic information is shuffled between non-sister chromatids of the homologous chromosomes. This shuffling process is referred to as crossing over. A new combination of alleles is formed due to the process of crossing over.
It is due to the process of crossing over that the organisms produced are not identical to each other or the parents. Genetic diversity is important in order for populations to survive which is possible through the process of meiosis.
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2.) Complete the diagram for the organization of life.
a.) ecosystem
b.) organelle
c.) organisms
d.) organs
Answers
Answer:
organelle
In the completed diagram the last organization of life the third structure is organelle. Thus, option B is correct.
What is organisation level in the living things?
In the case of living things first of all they are made up of the cell and the cell has been known as the basic and fundamental unit of the living things, after that cells combined and they form tissue, or we can say that group of cell is known as tissue.
Tissues combined together and they form muscles and these muscles are of several types and after that muscles combined together and they form organ and each of the organ of the body is made up of different types of tissue. Like heart is made up of such type of tissue that never takes rest.
At last the organs or we can say that two three organs combined together to form the organ system of the body such as nervous system, respiratory system, and these systems combinedly form the whole organism.
Therefore, In the completed diagram the last organization of life the third structure is organelle. Thus, option B is correct.
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3.How have scientists' ideas of human evolution changed over time
Please Hurry
Answers
Answer:
They once thought that humans came from monkeys and apes but now they think they come from a ancient ancestor not from the monkey or ape family.
Explanation:
A human general manner of life, including what it consumes, how it grows, and where it may dwell, might change throughout time as a result of genetic change.
What is human evolution?New genetic variations in early ancestor populations favored new capabilities for environmental adaptation, which then in turn altered the human way of life and facilitated human development.
It is generally accepted that the development of modern humans from our hominid ancestors involves four main stages in evolution, developing terrestriality, bipedalism, a huge brain (encephalization), and civilization.
They more than likely came from Africa within the last 200,000 years, an ancient form of human called Homo erectus
Therefore, Homo erectus, meaning means "upright man" in Latin, is most likely the most recent common ancestor of today's humans,
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Renal calculi can cause excruciating pain when they do not pass freely through the urinary system. In which renal structure or structures do renal calculi get stuck and cause this excruciating pain?
renal pelvis
urinary bladder
ureters
urethra
Answers
Renal calculi can get stuck in the ureters, which are the tubes that connect the kidneys to the urinary bladder. It can cause excruciating pain as the muscles of the ureters try to push the stone through. The pain may be felt in the back, abdomen, groin, or genital area, and can be accompanied by other symptoms such as nausea, vomiting, and difficulty urinating.
The pain occurs because the stone can cause a blockage in the ureter, leading to a buildup of pressure and stretching of the ureteral wall. The pain can be felt in the flank (the side of the body between the ribs and the hip), lower back, or lower abdomen, and can be severe enough to cause nausea and vomiting. Once the stone passes through the ureters and enters the bladder, it usually does not cause significant pain because the bladder is a more distensible organ and can accommodate the stone without causing obstruction. However, passing a stone through the urethra, the narrow tube that carries urine from the bladder out of the body, can also be painful.
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Osmosis Assignment
For questions 1-3 a cell which is 96% water is placed into the following environments. Answer each question and indicate whether each solution is hypotonic, hypertonic, or isotonic.
A solution of 100% water.
What is the direction of water movement?
Is in the direction of increased solute concentrations.
Does the cell shrink, swell, or have no change in size?
When water diffuses out of the cell, the cell shrinks.
Which type of solution is this?
Hypertonic
A solution of 4% sucrose.
What is the direction of water movement?
Does the cell shrink, swell, or have no change in size?
Which type of solution is this?
A solution of 12% sucrose.
What is the direction of water movement?
Does the cell shrink, swell, or have no change in size?
Which type of solution is this?
Place an “x” in the correct box in the chart below:
Statement
Hypotonic Solution
Hypertonic Solution
Isotonic Solution
The concentration of the solute in the solution is lower than the concentration inside the cell.
x
When a cell is placed in this solution, water will enter the cell causing it to swell.
x
The concentration of the solute in the solution is the same as the concentration inside the cell.
x
The concentration of the solute in the solution is higher than the concentration inside the cell.
x
Putting a plant in this solution will result in water loss and cause the plant to wilt.
x
The cell will shrivel when placed in this type of solution.
x
When a cell is placed in this type of solution, there will be equal amounts of water moving in and out of the cell.
x
Use each of the terms below just once to complete the passage:
glucose
cell membrane
homeostasis
organism
balance
selective permeability
Living cells maintain a homeostasis by controlling what materials enter and leave. Without this ability, the cell cannot maintain balance and will die. The cell must regulate internal concentrations of water, Glucose , and other nutrients and must eliminate waste products. Homeostasis in a cell is maintained by the Cell membrane, which allows only certain particles to pass through and keeps other particles out. This property of a membrane is known as Selective permeability. It allows different cells to carry on different activities within the same Organism.
Egg Osmosis Lab
Students in Biology class conducted a lab experiment to demonstrate osmosis using chicken eggs. The raw eggs were first soaked in vinegar for 24-48 hours to dissolve the shell. What was left was a very simple cell with a cell membrane. The eggs were massed, observed. and the data was recorded in the table below. On the first day of the lab the students placed their eggs into sugar syrup and left them overnight. The next day in the lab the eggs were removed from the syrup, carefully dried, observed, and massed again. Next the eggs were placed in distilled water and left overnight. The following day the eggs were removed from the water, carefully dried, observed, and massed.
Mass of egg (grams)
Appearance of egg
Day 1 (initial)
80.8
Transparent, squishy, feels sort of like a water balloon.
Day 2 (after syrup)
63.2
Egg feels softer and empty or deflated. It has shrunk and appears much more yellow.
Day 3 (after distilled water)
105.3
Egg is very large and feels like it might burst.
Describe what happened to the egg when it was placed into the sugar syrup in terms of osmosis.
Was the sugar syrup a hypertonic, hypotonic, or isotonic solution?
Describe what happened to the egg when it was placed into the distilled water in terms of osmosis.
Was the distilled water a hypertonic, hypotonic, or isotonic solution?
Answers
Answer:
Woah, woah, woah. Dude you put way too much. Nobody's gonna do a whole packet/assignment for you even for 50 points lol. And that's against the rule of the website (you can be punished if you're caught). But here's some osmosis basics.
Explanation:
If the cell has more water than its environment, it is hypertonic (think hyper like when you have a lot of sugar) The cell will want to release water. This may cause the cell to shrivel or shrink.
If the cell has less water than its environment, it is hypotonic (think hippos. they like to eat. hippo=hypo) The cell will absorb water, which may cause the cell to expand, swell, or even pop.
If the cell has the same amount of water/ proportion of water to other materials then nothing will really happen, and it will be isotonic. (Think isolated, where it doesn't have any interactions with other things.)
Solute= Thing being dissolved. (salt, sugar, etc.)
Solvent= Thing that dissolves the solute. (water, etc.)
Solution= The mixture of solute and solvent. (water + salt, etc.)
For some of the hypotheticals on this just think of what would happen if you did some of these experiments. What do you think would happen? Do research, and next time, don't post your whole packet lol. It's a waste of your points. And when you ask questions, take your time to formulate and describe the question as clearly as you can, so that we can help. Don't just copy and paste your lab assignment.
Thanks for asking your question,
Bob
We know that the formation of chemical bonds results in a release of energy. In the process of aerobic cellular respiration, the energy ________ from the formation of carbon dioxide and water is ________ than the energy needed to break the bonds in sugar and oxygen.
1. released, greater
2. absorbed, greater
3. released, less
4. absorbed, less
Answers
What is the characteristic of life of a giraffe eating leaves iff of a tree
Answers
Answer:
The Giraffe Personality
Explanation:
Giraffes are graceful, well-groomed individuals moving through life with the confidence and elegance that only big game animals exhibit.
Which statement is FALSE about the Cell Cycle? Question 4 options:
A. During Prophase, the cell fully splits into a parent and a daughter cell.
B. Most of the cell's life is spent in Interphase, growing larger.
C. The stages of the cell cycle repeat themselves.
D. The cytoplasm divides during the process called cytokinesis.
Answers
Answer:
the answer is A since the cell splits into two only during the cytokinesis
Answer: I belive its A
Explanation:
What are the three ways punnett square data can be represented?
Answers
Answer:punnett square
a peddigree chart and graphs
Explanation:
9+7x(15+3) divided by 3 to the 2nd piwer
Answers
Answer:
the answer is 23
Explanation:
23
Explanation:
15+3=18
9+7=16
3 to the 2nd power is 9
18+16+9=43
=23
help asap please!
science
Complete the table below to show the difference between active and passive transport. Put a “X” in boxes that satisfy the statement.
Answers
Answer:
Active transport:
requires energymolecules move from low to high concentration sidesNa+ and K+ move by active transportSimple diffusion:
molecules move from high to low concentration sidesmolecules pass between lipids small non-polar and polar moleculesFacilitated diffusion:
molecules move from high to low concentration sidesinvolves channel proteinsmove large moleculesExplanation:
Simple Diffusion is the pathway of only small molecules that freely move through the membrane by momentary openings produced by the lipids' movements. Diffusion is a slow process that requires short distances and pronounced concentration gradients to be efficient. An example of diffusion is osmosis by which water is the transported molecule. Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient. Glucose is an example of a hydrophilic protein that gets into the cell by facilitated diffusion.Simple diffusion and facilitated diffusion are both passive transport processes because they only depend on electrochemical gradients, so they do not need any energy to occur.
Active transport is the transport of molecules that move against the electrochemical gradient, so it does need energy to happen. Molecules move from the lower concentration side to the higher concentration side of the membrane. Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential. An example of molecules moved by active transport are the Na and K.
In Active transport, molecules or ions move against the concentration gradient by using energy from ATP.
What is Membrane transport?The transfer of molecules across the plasma membrane into or out of the cell.
There are two types of membrane transport,
1. Passive transport:
When molecules move along the gradient. It can be of two types,
Simple diffusion (via phospholipids)Facilitated diffusion (via channel protein)2. Active transport:
When molecules move against the concentration gradient, they require energy. Energy is given by ATP.
Therefore, in Active transport, molecules or ions move against the concentration gradient by using energy from ATP.
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Which statement explains how producers are dependent upon consumers for their survival?
A. Consumers supply oxygen for producers to undergo aerobic respiration.
B. Consumers provide chemical energy needed by producers for cellular respiration.
C. Consumers produce carbon dioxide for producers to use during photosynthesis.
D. Consumers make lactic acid that producers use in photosynthesis.
Answers
Answer: it's c
Explanation:
The statement that explains how producers are dependent on consumers for their survival is "Consumers produce carbon dioxide for producers to use during photosynthesis," which is present in the option C.
What is the importance of the consumer?The ecosystem must have both the consumer and the producer, as neither can survive if one gets eliminated from the ecosystem. The producer makes oxygen and glucose by taking the carbon dioxide that is released by the consumer, and in an ecosystem, there are many types of consumers, such as herbivores and carnivores. The consumer depends upon the producer for oxygen and food, while the producer depends upon the consumer and decomposer too.
Hence, the statement that explains how producers are dependent on consumers for their survival is "Consumers produce carbon dioxide for producers to use during photosynthesis," which is present in the option C.
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why a termeric stain on a white shirt is turned to red when it is washed with soap
Answers
Answer:
Curry contains turmeric powder and soap is basic in nature. ... Hence, when soap (which is basic in nature) is scrubbed on the stain, the stain turns red. When the cloth is washed with plenty of water, the soap is removed and the yellow colour of the stain reappears.
Explanation:
a
A structural adaptation is a physical
change in an organism's body that
helps it survive and reproduce.
Which is an example of a structural
adaptation in emperqr penguins?
A. huddling together in the winter and rotating
to keep warm
B. controlling their heart rates to slow down to
use less oxygen and go longer without food
C. a short, stiff tail that helps them move
through the water
Answers
Answer:
C
Explanation:
its the structural adaptation
Jumble letter can you help me plsss
Answers
\( \\ \)
In short it's natural resources.
Compare the potential
dispersal patterns of (1) a
snail with very short
lecithotrophic larval phase
that also has a very specific
food preference and (2) a
crab that has a long
planktotrophic larval phase
and is a food generalist. You
can discuss this in the
context of distributions of
species, oceanographic
processes, recruitment of
species, etc. You can find
information in your notes,
recommended textbook,
papers we've read as part of
class, and outside sources.
typed page max. Cite at least
3 sources (scientific papers,
textbook, white literature
suchand pave me man' trations.
at the end. Citations are not
included in the one-page limit
and if you are slightly over
one page there is no penalty.
Your writing should have a
logical presentation of ideas
and clearly defined
paragraphs. Remember you
will be graded on the content
of your answers and your
writing.
Answers
The potential dispersal patterns of species are influenced by various factors, including their life history traits and ecological requirements. In this context, it is interesting to compare the dispersal patterns of two different species: a snail with a short lecithotrophic larval phase and a specific food preference, and a crab with a long planktotrophic larval phase and a food generalist lifestyle.
The snail with a short lecithotrophic larval phase has a limited dispersal potential due to its specific food preference. During this stage of its life, it is dependent on a particular type of food, which may limit its ability to colonize new areas.
Additionally, its small size and limited mobility may further constrain its dispersal. On the other hand, the crab with a long planktotrophic larval phase has a greater potential for dispersal due to its ability to float on ocean currents and travel long distances. This allows it to colonize new areas and potentially avoid competition with other species.
Oceanographic processes can also influence the dispersal patterns of species. For example, the Gulf Stream, which flows along the east coast of North America, can transport larvae of species such as the crab to new areas. This can facilitate the colonization of new habitats and contribute to the species' range expansion.
Recruitment of species is also influenced by dispersal patterns. Species with limited dispersal abilities may have lower recruitment rates, as they are less likely to colonize new areas. In contrast, species with high dispersal potential, such as the crab, may have higher recruitment rates and contribute to the maintenance of diverse ecosystems.
In conclusion, the potential dispersal patterns of species are influenced by various factors, including their life history traits and ecological requirements. The snail with a short lecithotrophic larval phase has a limited dispersal potential, while the crab with a long planktotrophic larval phase has a greater potential for dispersal.
Oceanographic processes and recruitment of species are also influenced by dispersal patterns, highlighting the importance of understanding the ecological context of species and their potential for colonization and range expansion.
References:
Hoving, H., & Duineveld, G. C. (2013). Life history strategies in marine ecosystems. Annual Review of Marine Science, 5(1), 49-75.
Snelgrove, P. V. R. (2008). Introduction to marine ecology. Elsevier.
Waring, G. T. (2010). Zooplankton ecology: the roles of grazers, predators, and detritivores in marine ecosystems. Oxford University Press.
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the cranial nerve which conveys parasympathetic control of most organs of the thoracic and abdominal cavities is
Answers
The cranial nerve which conveys parasympathetic control of most organs of the thoracic and abdominal cavities is Vagus Nerve.
The vagus nerve, sometimes called the "wandering nerve," is the longest and most complex of the cranial nerves. It extends from the brainstem to the abdomen, via the neck, and has a broad variety of nerve fibers regulating many critical functions.
The vagus nerve regulates the digestive tract, the lungs, and the heart by conveying parasympathetic control of most organs of the thoracic and abdominal cavities. It's also responsible for the sensation of your throat and larynx, as well as certain muscles in the mouth. The nerve may be stimulated in a variety of ways, such as massage, acupuncture, and meditation, in order to reduce stress and anxiety and improve mood.
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A city has experienced an increase in vehicle traffic in the last few years. During this time, the city has also recorded an increase in air pollution.
Which solution should the city choose to best reduce air pollution in the coming years?
A.
Monitor the levels of air pollution during rush hour each day.
B.
Provide more public facilities for the disposal of motor oil used in vehicles.
C.
Encourage using public transportation rather than driving individual cars.
D.
Prohibit all use of motor vehicles on all roads in the city.
Answers
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C. Encourage using public transportation rather than driving individual cars.
What part of the CNS is not usually involved in an unconditioned reflex?
Answers
Answer:
The brain
Explanation:
All reflex actions follow an overall sequence through the nervous system which is called the reflex arc. Crucially this does not involve the conscious part of the brain, which makes it much quicker.
Communication enables cells to respond to the environment, they do this in different ways depending on the message received. Part A. Give two examples of different kinds of signals that can be received by cells from their environment and describe them. . Part B. Explain how the information would be transmitted into the cell. .
Answers
Part A: Chemical signals (hormones) and physical signals (mechanical stress) are examples of different signals received by cells from their environment.
Part B: Cellular receptors convert external signals into intracellular responses, using membrane receptors or intracellular receptors to transmit information into the cell.
Part A:
1. Chemical signals: Cells can receive chemical signals from their environment. For example, hormones are chemical messengers that can be released into the bloodstream and travel to target cells, triggering specific responses. Hormones play a crucial role in regulating various physiological processes in the body, such as growth, metabolism, and reproduction.
2. Physical signals: Cells can also respond to physical signals from the environment. One example is mechanical stress or pressure. Cells in tissues and organs can sense changes in mechanical forces, such as stretching or compression, and adjust their behavior accordingly. This ability is important for processes like tissue development, wound healing, and response to mechanical stimuli like gravity or touch.
Part B:
Information transmitted into the cell is facilitated by cellular receptors. Receptors are proteins located on the cell surface or within the cell that bind to specific signaling molecules, converting the external signal into an intracellular response. There are different types of receptors, including membrane receptors and intracellular receptors.
Membrane receptors, such as G protein-coupled receptors (GPCRs) or receptor tyrosine kinases (RTKs), are typically involved in receiving extracellular signals. Upon binding of the signaling molecule (ligand), the receptor undergoes a conformational change, leading to the activation of downstream signaling pathways inside the cell.
Intracellular receptors, on the other hand, are typically found in the cytoplasm or nucleus of the cell and are involved in receiving signals that can penetrate the cell membrane, such as lipid-soluble molecules or certain hormones. Once the ligand enters the cell, it binds to the intracellular receptor, enabling it to translocate to the nucleus and regulate gene expression.
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what type of oil is worse for a healthy lifestyle
Answers
Hydrogenated oil, which is found in process foods. These are in other words the artificial trans-fat category which are made by adding in hydrogen to liquid just so they can become a solid.
Which of the following is an example of heat transfer by conduction?
A shirt warmed when it touches a hot iron
Warm and cold water circulating in the ocean
Sunlight warming a room early in the morning
Hot air rising and cold air sinking on a beach
Answers
Answer:
A shirt warmed when it touches an iron
Explanation:
Conduction heat transfer is the transfer of heat by means of molecular excitement within a material without bulk motion of the matter. Conduction heat transfer in gases and liquids is due to the collisions and diffusion of the molecules during their random motion.
Conduction is the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Which study would have produced the least trustworthy results?
Answers
Answer:
A
Explanation:
.In a capillary bed, the bands of smooth muscle at the entrance to each capillary is called a(n) __________.
- thoroughfare channel
- collaterals
- precapillary sphincter
- ateriovenous anastomosis
Answers
In a capillary bed, the bands of smooth muscle at the entrance to each capillary is called a "precapillary sphincter".
Precapillary sphincters are small muscular rings that encircle the capillary entrance, controlling blood flow into the capillary bed. They are capable of constricting or relaxing, which determines how much blood flows through the capillary bed.
By regulating blood flow, precapillary sphincters help to ensure that tissues receive an adequate supply of oxygen and nutrients, and that waste products are efficiently removed.
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What are the five evidences that a chemical change has taken place ?
Answers
Answer:
Odor, temperature change, precipitate formation, production of gas bubbles, and a color change!
Explanation:
No explanation needed really.
Ram started his bussiness with cash re 500000 journilise the question
Answers
Answer:
___________________________________
Date Particular L.F Debit Credit
___________________________________
a. Cash a/c Dr. 500000
To capital a/c. 500000
___________________________________
Some rules of Debit and credit:Personal account
Personal account is related to proper noun like name of person, name of bank and company.
Rules for personal account:
Debit: the receiver
Credit: The giver
Personal Account is used to record credit transactions.
Real accountIt is related to visible things except personal account terms.
For example: Goods, Cash, Furniture, Vehicles, Buildings.
Rules for Real Account:
Debit: What comes in
Credit: What goes out
Nominal AccountNominal account refers to those things which cannot be seen but can be expressed in terms of money.For example: Rent, Salary, Wages, Commission, Tax etc.
Rules for Nominal Account:
Debit: All expenses and losses
Credit: All income and profit
Note: Every debit should have equal credit.
Hope this helps..
Good luck on your assignment...