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

Answer the following question in about 30 words.
Explain the evolution of valley sinks or uvalas.

Answer the following questions:
What are the different levels of biodiversity?

Answer the following question in about 30 words.
What relationship explained by rock cycle between the major type of rock?

Answer the following questions in about 30 words:
You have seen a tennis ball, a cricket ball, an orange and a pumpkin. Which one amongst these resembles the shape of the earth? Why have you chosen this particular item to describe the shape of the earth?

Answer the following Questions:
How much time do you take to reach your school from your house? Had the school been located across the road from your house, how much time would you have taken to reach school? What is the effect of the distance between your residence and the school on the time taken in commuting? Can you convert time into space and vice versa?

Answer the following question in about 30 words.
Describe the composition of atmosphere.

Answer the following question in about 30 words:
Name the direct sources of information about the interior of the earth.

Is it necessary to separate the process of soil formation and the soil forming control factors?

Is weathering solely responsible for soil formation? If not, why?

Answer the following question in about 30 words.
What do you mean by rocks? Name the three major classes of rocks.