How can a planetary nebula be identified? Select the two correct answers. (1 point)
a. central star remnant
b. dark area
c. diffuse edges
d. spherical shape

Answers

Answer 1

Answer:

A and D

Explanation:

Answer 2

A planetary nebula is a type of emission nebula that consists of expanding ions shells of gases from the stars in their late lives. Due to the planet like it has a round shape.

The Planetary nebula represents the end life cycle of a star and has 1-8 solar mass. This nebula is identified by the round and spherical shells of gases from the Steller remains.They are usually short-lived and play a crucial role in the evolution of the milky way. Having very complex and extreme structures.

Hence the option A and D that is a star remnant and spherical shape is correct.

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Related Questions

Give at least four specific examples that
prove the following statement to be true:
"China is geographically diverse."

Answers

Four specific examples that show that "China is geographically diverse" are:

Different terrains Different climates Variety of flora and fauna Different ethnic groups

How do we know that China is geographically diverse?

China has a wide variety of terrain, from the snow-capped mountains of the Tibetan Plateau to the tropical rainforests of Hainan Island. China also has a wide variety of climates, from the frigid winters of the north to the subtropical summers of the south.

China is home to a wide variety of flora and fauna, including giant pandas, snow leopards, and the Yangtze River dolphin. China is home to over 50 ethnic groups, each with its own unique culture and traditions.

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What was the rate at which the glacier's toe retreated (through melting/sublimation) between 1818 and 1882

Answers

Answer:

Explanation:

The missing part of the question is shown in the diagram attached below:

From the image attached, we can see the Map of Rhone Valley glacier in Swiss Alps.

To determine the rate at which the glacier's toe retreated between 1818 & 1882;

Let start by determining the scale of the map

Using the scale of  1.5cm = 3000 feet

Then;

1 cm = 2000 feet

So, if the ice retreated 2.1cm;

Then to feet, we have:

2.1 cm * 2000 feet = 4200 feet

Hence, the required rate at which the glacier toe retreated is:

\(= \dfrac{4200}{1882 -1818} \\ \\ =\dfrac{4200}{64}\)

= 65.63 feet/year

What was the rate at which the glacier's toe retreated (through melting/sublimation) between 1818 and

Europe currently enjoys a very high standard of living because:
O A. it has more colonies than other regions of the world.
O B. it has more available petroleum than other countries.
O C. it has many constitutional monarchies.
D. it started the Industrial Revolution.

Answers

Answer:

OA

Explanation:

Answer:

D

Explanation:

I just did it

what's a coastline in Australia ?​

Answers

The coastline of Australia comprises the coasts of mainland Australia and Tasmania

Luis Santilla was hospitalized for an illness. The cost of his hospital room was $1,587. The cost of
medical services was $1,298. His insurance company did not cover $359 of the total bill. Luis has to
pay a $200 deductible and 20% coinsurance. What was the cost to Luis for treating his illness?

Answers

In the given problem, he cost for the treatment of Luis illness is  $1,024.20.

How to get the Cost?

The overall cost of the hospital room and medical services is as follows:

$1,587 + $1,298 = $2,885

The amount that the insurance company does not cover is:

$359

As a result, the total cost that Luis must bear is:

$359 plus $200 (deductible) equals $559.

Luis must also pay 20% coinsurance on the remaining cost, which is as follows:

20% * ($2,885 - $359 - $200) = 20% * $2,326 = $465.20

As a result, the total cost of Luis's disease treatment is:

$559 + $465.20 = $1,024.20

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For the line y = 2/3 x + 4 what would be the slope for the line perpendicular to this

Answers

Answer:

The perpendicular slope would be -3/2 and the equation would be
y = -3/2 x + 4

Explanation:

What is more in developing nations than industrialized ones

Answers

Answer:

Explanation:

Developing nations tend to have higher rates of poverty, unemployment, and disease than industrialized nations. They also often have lower levels of education, access to healthcare, and infrastructure, which can lead to economic and social disparities. In contrast, industrialized nations tend to have higher levels of economic development, technological advancement, and social welfare.

Describe society and culture of today in Northwestern Europe.

Answers

Explanation:

hope it was helpful to you

Describe society and culture of today in Northwestern Europe.

What features make up our planet

Answers

Earth is composed of four main layers, starting with an inner core at the planet's center, enveloped by the outer core, mantle, and crust. The inner core is a solid sphere made of iron and nickel metals about 759 miles (1,221 kilometers) in radius.
source: nasa

How is the earth changing?

I Really need help with this!!!!

Answers

Answer:

Earth and it's atmosphere are continuously altered. Plate tectonics shift the continent's, raise mountains and move the ocean floor while process not fully understood alter the climate. Such constant change has characterised Earth since its begining some 4.5 billion years ago.

Explanation:

Hope this answers your question!!

3.6.1 What is pressure gradient force? 1004 B 1000 Slow 996 (1x1) (1) 3.6.2 Label A and B as either strong or weak pressure gradient force. (2 x 1) (2) 3.6.3 Which pressure systems are associated with weak pressure and stronger pressure gradient force respectively? (2 x 2) (4) 3.6.4 Distinguish between a strong pressure gradient force and a weak pressure gradient force. (2 x 2) (4) 18.5 Describe the relationship between wind speed and pressure gradient force (2 x 2) (4)​

Answers

(1) Label A and B as either strong or weak pressure gradient force: A - Strong Pressure Gradient Force; B - Weak Pressure Gradient Force.

What are pressure systems?

(2) Weak pressure systems are associated with weak pressure gradient force, while stronger pressure systems are associated with stronger pressure gradient force.

(4) A strong pressure gradient force occurs when the pressure difference between two points is large, resulting in a strong wind speed. A weak pressure gradient force occurs when the pressure difference between two points is small, resulting in a low wind speed.

(4) The relationship between wind speed and pressure gradient force is directly proportional; as the pressure gradient force increases, so does the wind speed. Conversely, as the pressure gradient force decreases, the wind speed also decreases.

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what country/countries use the euro?​

Answers

Answer:

Austria, Belgium, Cyprus, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Portugal, Slovakia, Slovenia and Spain

Explanation:

Answer:

Germany France Spain uhh Italy?

Explanation:

what is the effect of international date line

Answers

Answer:

The International Date Line provides a standard means of making the needed readjustment: travelers moving eastward across the line set their calendars back one day, and those traveling westward set theirs a day ahead.

Explanation:

hope this helps

Which of the following can be used as reasons in a 2 column proof? Negations, conjecture, postulAtes, proven theorems.

Answers

Should be postulates.

Answer:

the right answer should be D

Explanation:

wich porportion can be used to find 75% of 32​

Answers

Answer:

Explanation:

75/ 100= x/32

multiply 32 and 75. divide that product by 100 to get your final answer.

BRAINLYEST PLEASE

How far back into the universe are we able to see

Answers

Answer:

46 billion light years

Explanation:

In actuality, we can see for 46 billion light years in all directions, for a total diameter of 92 billion light years.

Single party definition?

Answers

Answer: hey srry if im late but heres the answer! single party

Explanation:

single-party

in British English

(ˌsɪŋɡəlˈpɑːtɪ IPA Pronunciation Guide )

ADJECTIVE

of or relating to a form of government in which only a single political party constitutes the government

An authoritarian figure, he favoured a single-party state.

Coalitions are more likely - but most recent elections still led to a single-party government.

On the political front, a single-party system remains in force.

Which statement accurately describes Latin America?

Responses

It has widespread ownership of land.
It has widespread ownership of land.

It has widespread access to medical care.
It has widespread access to medical care.

It has the same level of urbanization as Europe.
It has the same level of urbanization as Europe.

It has the same amount of infrastructure as North America.
It has the same amount of infrastructure as North America.


WILL GIVE BRAINLIEST

Answers

"It has widespread ownership of land" accurately describes Latin America. Thus, option 'A' is the correct option.

What is Latin America known for?

It is renowned for its hospitality and for its people's variety, culture, and customs. Additionally well-known are Latinos' dancing, a wide variety of delicious cuisine, and stunning tropical settings. The majority of Latin American nations were colonies of Spain and Portugal up to the 19th century. South of the United States in the Western Hemisphere lies an area known as Latin America.

The regions of South America, Middle America, and the Caribbean that speak Latin languages, commonly referred to as the "Romance languages," are collectively referred to as Latin America. These include French, Portuguese, and Spanish.

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these earth photos show the colorado river, which has incised downward due to uplift of the colorado plateau. the canyon cut by this river is currently flooded due to a dam installed in northern arizona in 1963, creating lake powell. a rincon, or an incised and abandoned meander, can be seen in the following images. the previous and present paths of the river are also outlined.

Answers

This earth photo shows the colorado river, which has incised downward due to the uplift of the colorado plateau. the canyon reduced via this river is presently flooded due to a dam mounted in northern Arizona in 1963 a stream migrates laterally across its floodplain growing meanders. This flow terminates at a lake, which is its base stage.

The base degree of the stream is lowered by using crustal uplift and the river starts to incise downward.

Incised meanders form.

A Rincon forms via the cutoff of an incised meander, which shortens the river.

The primary photograph of Earth as a whole become taken on Dec. 7, 1972, by using scientist-astronaut Harrison H. Schmitt, a member of the Apollo 17 group on their way to finishing NASA's very last mission to land on the Moon.

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Discuss the impacts of human activities on catchment area Suggest the strategies to manage catchment area​

Answers

The following are some effects of human activity on catchment areas:

Land use changeWater abstractionPollutionClimate change

An area's watershed is the region from which water flows into a certain stream or body of water. The quality and amount of water available for human and ecosystem usage can be significantly impacted by human activity in watershed regions. The following are a few effects of human activity on catchment areas:

Land use change: The natural vegetation cover can be changed by human activities including deforestation, urbanization, and agricultural development, which can worsen soil erosion, sedimentation, and water infiltration. The quantity and quality of water that flows into rivers and lakes may alter as a result of these changes.Water abstraction: Water availability downstream can be decreased by human activities including damming, abstraction, and diversion from rivers and lakes, which can result in lower river flows, less groundwater recharge, and higher water stress.Pollution: Pollutants including fertilizers, chemicals, and microplastics can be introduced into water bodies by human activities like industrial and agricultural processes, sewage discharge, and littering, which can have an impact on the water's quality and aquatic life.Climate change: The hydrological cycle can be impacted by human activities such as the burning of fossil fuels, which can raise the concentration of greenhouse gases in the atmosphere and cause global warming, which can influence rainfall patterns, river flows, and water availability.

Some tactics for managing catchment regions include:

Land use planning: Planning for land use appropriately helps ensure that human activities in catchment areas have minimal negative effects on the ecosystem. Water quality can be maintained by reducing soil erosion and sedimentation, enhancing water infiltration, and conserving key areas and critical areas of land use.Water conservation: Water abstraction from rivers and lakes can be reduced and water availability for both human and ecological use can be improved by promoting water conservation practices including lowering household water use, supporting water harvesting and storage, and encouraging water reuse.Pollution control: Effective waste management techniques, such as recycling and secure hazardous waste disposal, can lower the pollution levels in aquatic bodies.Climate change adaptation: It is possible to lessen the effects of climate change on catchment regions by building climate-resilient infrastructure, such as dams, irrigation systems, and water storage facilities.Community participation: It is possible to encourage the sustainable use of water resources and improve ecosystem services by including local communities in catchment management initiatives like river monitoring, watershed restoration, and water conservation campaigns.

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explain how air moved around this system​

Answers


The air in the atmosphere moves around the World in a pattern called global atmospheric circulation. This pattern called atmospheric circulations is caused because the sun heats up the earth more at the equator than at the poles,It’s also affected by the spin of the earth in the tropics near the Equator warm air rises.
:) hope this help

The river valleys of the Tigris-Euphrates, the Nile, and the Indus were centers of civilization because they _____. a were easy to defend from invasion b had fertile [life-giving] soil, fresh water, and warm climates c were isolated [separated far from others] from other cultural influences d had rich deposits of iron ore and coal

Answers

Answer: Had fertile soil, fresh water, and warm climates

Why does the layer of Sendimentary rock cover the earth surface​

Answers

The layer of sedimentary rock covers the earth's surface due to the process of weathering and erosion. These rocks are formed through the accumulation of small particles of rock, shells, and other materials that have been deposited by wind, water, and ice over millions of years.

Sedimentary rocks are made up of layers of sediment that have been compacted and cemented together over time. These layers of sedimentary rock can be found all over the earth's surface because they are formed through a natural process that is constantly happening.

When rocks are exposed to the elements, they break down into smaller particles through a process known as weathering. These particles are then transported by wind, water, and ice to new locations where they can be deposited and eventually compacted and cemented together to form sedimentary rock.

Because weathering and erosion are ongoing processes, new layers of sedimentary rock are being formed all the time. This is why we find these rocks covering the earth's surface and why they are so important to understanding the history of our planet.

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Florida’s elevation affects its climate. How does elevation affect the temperature of an area?

As elevation increases, air pressure decreases, the air molecules come closer together, and the air warms.
As elevation increases, air pressure increases, the air molecules come closer together, and the air cools.
As elevation increases, air pressure decreases, the air molecules spread out, and the air cools.
As elevation increases, air pressure increases, the air molecules spread out, and the air warms.

Answers

Answer:

I would say as elevation increases air pressure decreases the air molecules spread out and the air cools.

Explanation:

the higher you go the colder it gets and so at higher altitudes, air molecules can spread out more, and air density decreases

Answer:

C:  as elevation increases air pressure decreases the air molecules spread out and the air cools.

Explanation:

Have a nice day!

Which of the items below are true about acid rain?

Answers

Answer:

what are the options

Explanation:

Answer:

What are the options?

map of mapela the study is located where area​

Answers

Answer:

Map of Mapela showing the extent of the site and a high concentration of houses on the summit. Note the sharp cliff around the summit (bold brown line; image in full colour online) (from Chirikure et al. 2014)

Explanation:

While pioneers of archaeology in any given region have established the foundations of the discipline, their views have not remained unchanged in places such as Europe, North America and Australasia. In these regions, successive generations of researchers changed the direction of their work based not just on new observations but also in light of new...

Mapela is an archaeological site located in the Limpopo Province of South Africa. This site holds significant historical importance, as it provides valuable insights into the pre-colonial history of the region.

The study area of Mapela mainly encompasses the Mapungubwe Cultural Landscape, a UNESCO World Heritage Site. This landscape features extensive remains of ancient settlements, including stone-walled structures, terraces, and agricultural fields. Researchers and archaeologists study this area to better understand the complex socio-political systems and trade networks that existed among the communities in Southern Africa during the Late Iron Age (circa 1000-1300 AD).

Mapela holds great importance in the field of archaeology, as it sheds light on the development of social complexity and the emergence of early states in this part of Africa. It also provides crucial information about the interactions between local communities and the broader Indian Ocean trade network. Furthermore, the archaeological evidence from Mapela has contributed to our understanding of the relationship between environmental changes and human adaptations during that time.

In summary, Mapela is an archaeological site located in South Africa's Limpopo Province, and its study area mainly focuses on the Mapungubwe Cultural Landscape. This region holds significant historical and cultural importance, offering insights into the social, political, and economic developments of Southern Africa during the Late Iron Age.

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Step 1: Formulating a hypothesis or a geographical statement As Geographers we seek to understand and explain the interactions between humans, and between humans and the environment in space and time. This is achieved by asking questions or making informed geographical decisions on causes, effects and solutions/recommendations​

Answers

When performing research or study in the discipline of geography, the first step is to formulate a hypothesis or a geographical statement.

Geographers work to comprehend and explain a variety of interactions, including those that take place between people, between people and their environment, and between these interactions' geographical and temporal dimensions.

Geographers can create hypotheses or statements that describe the causes, impacts, and potential solutions or suggestions related to certain geographical phenomena or research topics by asking questions and making educated conclusions.

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Question 10 (1 point)
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Which of the following best describes a gulf?

Question 10 options:

land entirely surrounded by water


a large inland body of water


an opening of a river that opens into another body of water


a large body of water that is partially surrounded by water

Answers

A larger-than-average inland body of water is the phrase that most accurately describes the gulf.

What is a gulf?

A huge body of water in the sea that is separated from the surrounding land by a short channel and known as a gulf. pe

Gulfs may vary in size, shape, and depth depending on their location. The Gulf is larger than bays and also more intricately shaped than bays. Gulfs are often used as centers for trade.

The properties and uses of places that are dominated by the permanent, seasonal, or intermittent occurrence of flooded conditions are referred to as inland waters. Inland waters are permanent water bodies that are located inland from the coastal zone. Rivers, lakes, floodplains, reservoirs, wetland areas, and inland saline systems are all considered to be types of inland waterways.

Therefore, the phrase "huge inland body of water" is the most appropriate way to characterize the gulf.

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The least equipped oranisms may not survive true or false

Answers

Answer:

true

Explanation:

Human interaction
with the environment

Answers

Answer:

humans depend on the environment

humans modify the Environment humans adapt the environment

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