Composition and Structure of Atmosphere — Geography STD 11 Humanities — Question

Answer the following questions:
What are the major factors that are responsible for the loss of biodiversity? What steps are needed to prevent them?

Answer the following question in about 30 words.
Why is troposphere the most important of all the layers of the atmosphere?

Answer the following question in about 150 words.
Running water is by far the most dominating geomorphic agent in shaping the earth's surface in humid as well as in arid climates. Explain.

Answer the following question in about 150 words.
Describe the composition of the atmosphere.

Answer the following question in about 150 words.
Draw a simplified diagram to show the general circulation of the atmosphere over the globe. What are the possible reasons for the formation of subtropical high pressure over 30°N and S latitudes?

Answer the following question in about 150 words.
Describe the nature and mode of origin of the chief types of rock at the earth’s crust. How will you distinguish them?

Answer the following question in about 30 words.
Name the three types of precipitation.

Answer the following question in about 150 words.
Discuss the processes through which the earth-atmosphere system maintains heat balance.

Answer the following question in about 150 words.
Discuss the factors affecting the speed and direction of wind.

Answer the following questions in 30 words:
How do currents affect the temperature? How does it affect the temperature of coastal areas in the N.W. Europe?