Multiple choice question.

Which one of the following describes the lithosphere:

Multiple choice question.

Which one of the following is a direct source of information about the interior of the earth?

Multiple choice question.

Which type of volcanic eruptions have caused Deccan Trap formations?

Answer the following questions in about 30 words.

(i) What are body waves?

(ii) Name the direct sources of information about the interior of the earth.

(iii) Why do earthquake waves develop shadow zone?

(iv) Briefly explain the indirect sources of information of the interior of the earth other than those of seismic activity.

Answer the following questions in about 150 words.

(i) What are the effects of propagation of earthquake waves on the rock mass through which they travel?

(ii) What do you understand by intrusive forms? Briefly describe various intrusive forms.