Distribution of Oceans and Continents — Geography STD 11 Humanities — Question

Answer the following questions about 150 words
You have already studied geography, history, civics and economics as parts of social studies. Attempt an integration of these disciplines highlighting their interface.

Answer the following questions:
What are bio-geochemical cycles? Explain how nitrogen is fixed in the atmosphere.

Answer the following question in about 150 words.
How do glaciers accomplish the work of reducing high mountains into low hills and plains?

Answer the following questions in about 150 words:
How are various elements of the hydrological cycle interrelated?

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 30 words:
Briefly explain the indirect sources of information of the interior of the earth other than those of seismic activity.

Answer the following questions about 150 words.
You observe every day in your surroundings that there is variation in natural as well as cultural phenomena. All the trees are not of the same variety. All the birds and animals you see, are different. All these different elements are found on the earth. Can you now argue that geography is the study of “areal differentiation”?

Can you compare the three climatically controlled agents?

Answer the following question in about 150 words.
What type of vegetation would you find in the "C" and "A" type(s) of climate?