Stars stay in the same spot on the HR diagram throughout their life cycle ---False
In the HR diagram the total brightness is plotted against the star's surface temperature. As a star progresses through its life cycle, it moves from one place to another along the HR diagram.
Do stars stay in only one spot on the HR chart?
Over time, stars change or evolve as their core physics change. However, most of a star's life is located somewhere on the main sequence. Some areas of the HR chart are named, but stars can occupy any part.
What is the life cycle of a star ?A small star like the Sun gradually cools and loses its brilliance. During this transition, it passes through a planetary nebula phase and a white dwarf phase. After tens of millions of years, it will fade and become a black dwarf. Massive stars meet a more energetic and violent end.
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I
On the world map above, the line that travels from west to east and that is highlighted in yellow is called the
Answer: Equator.
The line that goes from west to east, or side to side/is in the middle of the map horizontally, is the equator.
The wood that weeps" produces a milky sap that we call
Answer:
Are you looking for "The wood that weeps produces a milky sap we call milkweed.
Explanation:
Milkweed is a herbaceous American plant with milky sap. Some kinds attract butterflies, some yield a variety of useful products, and some are grown as ornamentals.
Which is a good description of potential energy?
Answer:
Potential energy is stored energy that depends upon the relative position of various system parts.
Explanation:
Hope it helps:)
Which of the following alternative energy technologies require(s) burning fossil fuels to start generating electricity?
A. Solar cells
B. Solar thermal power plant
C. Hydrokinetic buoys
D. Geothermal power plant
Answer:
Solar thermal power plant
Explanation:
I'm doing the test, good luck <3
CONCLUSION: To accurately create a topographic map, what types of data do you need to collect?
To accurately create a topographic map, the types of data one needs to collect include the "determination of the right elevation contour."
Also, a geographer needs to determine the contour of the landscape. A topographical map is generally used to show the details of physical features on the site.
Some of the features or things you find on the topographical maps include buildings, fences, roads, rivers, forests, elevation height, etc.
Hence, in this case, it is concluded that making a topographical map counter and height of the land is essential.
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What are most Venezuela’s of cities located
Question 2
5 pts
Hypothesis
Take a moment to study the surface Pressure Map. Write a hypothesis using an if/then statement
that will help explain what you expect the areas of high and low pressure to be once the isobars are
drawn.
If there is a significant difference in air temperature between two adjacent regions, then it is expected that areas of high pressure will form over the colder region, while areas of low pressure will develop over the warmer region.
Based on the given information, we can hypothesize that the distribution of high and low-pressure areas on the surface Pressure Map will be influenced by the temperature gradient across different regions. If there is a substantial difference in air temperature between adjacent areas, then we can expect the formation of areas of high and low pressure. The colder region will experience higher air pressure, as the colder air tends to be denser and sinks, creating an area of high pressure. Conversely, the warmer region will exhibit lower air pressure, as the warmer air expands and rises, leading to the formation of an area of low pressure.
The temperature gradient plays a crucial role in atmospheric circulation patterns, as it drives the movement of air masses and the development of pressure systems. The pressure differences between high and low-pressure areas influence wind flow, leading to the movement of air from high-pressure to low-pressure regions. Therefore, understanding the relationship between temperature gradients and pressure systems is vital for predicting weather patterns and identifying areas of potential atmospheric disturbances.
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major problem of Ethiopia agricultur?
Answer:
in short unemployment water logging in wetland areas cellenti in arrange and semite areas acidity in high rainfall areas best like with diseases and insect and interact rainfall the structure are the common problems in edition the country agriculture depends on the rainfall
Why is it important to plant the right trees?
Answer:
Explanation:
Native trees have better disease and pest resistance, but how a tree is planted and the site that it is planted in can affect its overall health. Trees that become diseased are often attacked by insects (pests). This is because the disease weakens the tree's defenses, making it vulnerable to infestation by pests.
In geographic terms a push factors is something that
Answer:
In geographic terminology, when discussing migration you will often hear “push and pull factors.” A “push-factor” is something that encourages an individual to leave, or emigrate from, a certain place. A “pull-factor” is something that attracts individuals to migrate to a certain place.
Explanation:
How are the vacuoles different in plant and animal cells?
Explanation:
Because the animal vacuole is small because it hold waste products and water
And in plant the vacoles are bigger because they hold the water for food and when they do photosynthesis
Who controls the government in a Command Economy?
In a command economy, the price, the flow of goods, and the amount of output are all controlled by the central government.
Advocates of command economies claim that government control, rather than business ownership, can ensure fair allocations of goods and amenities. Under a system of command economies, also known as a planned economy, the governing body of a nation must be able to supervise the means of manufacturing.
Private land and capital ownership either doesn't exist or is very limited. Price management is done by central planners, who also control output levels and limit or outright prohibit rivalry in the private sector. Since all companies in a command economy are owned by the government or are under its control, there is no commercial sector.
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What type of map is this?
Wester
Agenda
Lys
t,
ES
Cape
Verde Marina
Mali
Nir
Chad
The Gambia
Guinea-
Nigeria
Sierra Leone Cote
be
Toge Benin
Etorben
Games
Congo
Central South
African
Soda
Usande
Democratic Keny
the Congo
Tansa
Angola
AFRICA
4
Swand
South
Africa
Les
A physical map
B. precipitation map
C. political map
D.
economic activity map
O 2020 Edmentum. All rights reserved
Answer:If you could attach a Picture that would be most helpful...
As early map makers concluded, the shorelines of South America and Africa coincided nicely. Suggest some early evidence indicating that these two landmasses were once joined and in some way had been torn away from each other.
impact of droughts on food security in south africa
Answer:
Droughts have long been a threat to South Africa’s agriculture and food production. Last year’s droughts were the cause of decreased grain, wheat, and fruit production in several parts of the country and the prolonged dry seasons caused farmers to wait longer to plant their crops, or miss the planting season entirely. Southern Africa is suffering through its worst drought in several decades and perhaps a century. Diminished and late rainfall, combined with long-term increases in temperatures, have jeopardized the food security and energy supplies of millions of people in the region, most acutely in Zambia and Zimbabwe. According to a study, drought reduced agricultural productivity in South Africa by 8.4% in 2015. The livestock industry had a 15% drop in national herd stock as a result of the drought.
Answer:
South Africa is a country that is particularly vulnerable to droughts. The country's climate is characterized by a high degree of variability, with alternating periods of drought and flooding. This variability is exacerbated by climate change, which is making droughts more frequent and severe.
Droughts have a significant impact on food security in South Africa. They reduce crop yields, which leads to higher food prices. This makes it difficult for low-income households to afford food, and can lead to food insecurity. Droughts also impact livestock production, which can further reduce the availability of food.
In addition to their direct impact on food production, droughts can also have a number of indirect impacts on food security. For example, droughts can lead to water shortages, which can impact irrigation and drinking water supplies. Droughts can also damage infrastructure, such as roads and bridges, which can make it difficult to transport food to market.
The government of South Africa has a number of policies in place to mitigate the impact of droughts on food security. These policies include:
* Investing in irrigation infrastructure
* Providing financial assistance to farmers
* Promoting drought-tolerant crops
* Educating farmers about drought-resistant farming practices
These policies have helped to reduce the impact of droughts on food security in South Africa. However, more needs to be done to ensure that all South Africans have access to safe and affordable food, even in the face of drought.
The Oregon Treaty established the 49th parallel as a boundary between the western portions of the United States and Canada, largely before any of this
area was heavily populated. What type of boundary would this be?
A. geometric
B. physical
O C. antecedent
O D. superimposed
Rainforests are a feature of
the Columbia Basin.
the Olympic Mountains.
O the Puget Lowlands.
O the Willapa Hills.
Answer:
Rainforests are a feature of the Olympic Mountains.
Explanation:
The rainforests are something that is associated with the tropical regions around the Equator. This should not come as a surprise as the vast majority of them are found in this part of the world, but very often it is forgotten that there are other rainforests, outside of the tropics. These rainforests have all very similar characteristics to the tropical rainforests but they are located in the temperate regions in the mid-latitudes.
One such rainforest is found near the northwestern coast of the United States, in the state of Washington, on the Olympic Mountains. These mountains are located just above the coastline, and because they act as a barrier, the constant humidity that comes from the ocean is built up and there is rainfall throughout all of the year. Because there is rain all year round, there is lush vegetation, though it has to be noticed that the amount of plant species is relatively low compared to the tropical rainforests. The animal species tend to be in a higher number than in most of the other biomes in the temperate climates but again much smaller than in the tropical rainforests.
the type of volcano
Strato Volcano
This is the steepest type of volcano. It is made up of layers of ash and lava. The lava cools and hardens quickly before spreading very far, and so produces steep sides.
Discuss the main strategies plans for cyclone eloise
Answer:
Tropical Cyclone Eloise was the strongest tropical cyclone to impact the country
Scientists agree that the early Earth, before 2.4 billion years ago, contained only trace quantities of oxygen and that the oceans were
full of dissolved iron, Data collected point toward oxygen poor, iron-rich conditions for 90% of Earth's history, with oxygen and
hydrogen sulfide present and found mostly to the surface layers and along the margins of the oceans, Scientist also agree that most
Life forms evolved initially in marine habitats. How did the marine environment change to help foster the evolution of so many life
forms?
A)
With the advent of photosynthesis, oxygen began to build up in the oceans.
B)
Volcanic lava added oxygen to Earth's crust and is dissolved in ocean
water
C)
Oxygen was the by-product of the chemical decomposition of early
Lithospheric rocks
Anaerobic cellular respiration of prokaryotes produced dissolved oxygen in
D)
the oceans
Submit
Answer:
C
Explanation:
An example of a tortoise repopulation success is the Espanola Tortoise Pinta Tortoise Tapia Tortoise Galapagos Tortoise
The Central Uplands is an area of
Answer:
is one of the 3 major natural regions of Germany
Explanation:
It stretches east to west across the country.To the north lies the North German Plain
b. List two ways producers influence consumers (4 points)
Precipitation that occurs in the low latitudes is also known as-
Orographic precipitation
Convectional precipitation
Weathering precipitation
Frontal precipitation
Answer:
Convectional precipitation
Explanation:
Convectional precipitation is a type of precipitation that occurs in the low latitudes.
The low latitudes are typically the tropical belt of the world which straddles the equator.
During convectional precipitation, high amount of solar insolation rapidly heats the ground evaporating surface water to form rain clouds.Orographic precipitation occurs in high altitude regions. The peaks causes the formation of rain clouds which leads to a mountain have a windward and leeward sides.
Frontal precipitation occurs at the point of convergence of two air masses, one warm and the other cold.
So, convectional precipitation is the appropriate choice here.
Our current best estimate is that the western Grand Canyon in Arizona began to be excavated by riser erosion about 6 million years ago. The greatest depth of the Grand Canyon is about 1 .6 km. Required:a. Is the mean (average) rate that the Grand Canyon has been eroded into the Color-ado Plateau during the past 6 million years. expressed in millimeters per year? Show your work below. b. If erosion of the Grand Canyon proceeded at that rate during the most recent century, how much deeper is it today than it was on the day you were born? Show your work.
Answer:
0.267mm/yr
7.25 mm
Explanation:
Given the following:
Estimated time since erosion began = 6 million years
Greatest depth of canyon = about 1.6km
The mean rate of erosion in millimeter per year:
Mean rate = Depth of canyon / time
Depth of canyon in millimeter:
1 km = 1000000 mm
1.6km = (1.6 × 1000000) = 1,600,000 mm
Mean rate = 1,600,000mm/ 6,000,000 years
Mean rate = 0.26666 mm/yr
Mean rate = 0.267 mm/year
B.) If rate of erosion = 0.267mm/yr
Date of birth = 30 / 10 / 1992
Today's date = 5 / 9 / 2020
Date difference = 27 years 55 days
Total number of days = (27 *365) + 55 = 9,910 days
Rate of erosion per day = 0.267 / 365 = 0.0007315 mm / day
Change in depth from date of birth till today:
0.0007315 mm/day × 9,910 days
= 7.2492328 mm
= 7.25 mm deeper
A. If the mean (average) rate of the Grand Canyon has been eroded into the Color-ado Plateau during the past 6 million years, the it being expressed in millimeter would be:
Estimated time since erosion began = 6 million years
Greatest depth of canyon = 1.6km
AverageAverage is a number expressing the central value in a set of data which is the mode, median or mean which is calculated by dividing the sum of values in their set by their numbers.
Therefore, the mean rate of erosion in millimeter per year:
Mean rate = Depth of canyon / time
Depth of canyon in millimeter:
1 km = 1000000 mm
1.6km = (1.6 × 1000000) = 1,600,000 mm
Mean rate = 1,600,000mm/ 6,000,000 years
Mean rate = 0.26666 mm/year
Mean rate approximately = 0.267 mm/year
B. If erosion of the Grand Canyon proceeded at that rate during the most recent century, the depth of it today than it was the day i was born would be:
If the rate of erosion = 0.267mm/year
Date difference = 27 years 55 days
Total number of days = (27 *365) + 55 = 9,910 days
Rate of erosion per day = 0.267 / 365 = 0.0007315 mm / day
Therefore, the Change in depth from date of birth till today: 0.0007315 mm/day × 9,910 days = 7.2492328 mm
Approximately = 7.25 mm deeper
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How do geologic columns relate to the principle of uniformitarianism?
Geologic columns, which display the sequence of rock layers in a particular location, relate to the principle of uniformitarianism by showing that the processes that formed these rocks have been ongoing and consistent over time, and are likely still occurring today.
Geologic columns represent layers of rock and sediment that have accumulated over time, and they are a key tool for understanding the history of the Earth.
The principle of uniformitarianism suggests that the same physical and chemical processes that shape the Earth today have been at work throughout its history.
Geologic columns provide evidence that supports this principle, as the layers in the column are arranged in a consistent manner and demonstrate that the same natural processes that shape the Earth today, such as erosion, sedimentation, and volcanic activity, have been occurring for millions of years.
Thus, geologic columns serve as a visual representation of the principle of uniformitarianism in action.
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what is meaing of tab
Answer:
tab means a small flap or strip of material attached to or projecting from something, used to hold, fasten, or manipulate it, or for identification and information is called tab.
hope it helps
what style of greek pottery is characterized by its use of black figures on a red background
Answer: Red-figure Pottery
Explanation: Red-figure Pottery is a style of Greek vase painting invented in Athens c. 530 BCE. The style has drawn red figures and a painted black background. Red-Figure Pottery grew in popularity, and by the early 5th century BCE it had all but replaced black-figure pottery as the predominant pottery type in Athens. The last recorded examples are from c. 320 BCE.
The executive branch is made up of the president, vice president, and cabinet members (including staff).
1 point
True or false?
Answer: I'm not entirely sure whether it's true or false, but I have some information to helps you.
Explanation: The executive branch carries out and enforces laws. It includes the president, vice president, the Cabinet, executive departments, independent agencies, and other boards, commissions, and committees.
Sorry I couldn't be more help.
Which of the following is not one of the 5 tools that help us read maps?
A) a title
B) a legend
C) a compass rose
D) a projection