Q1 of 9 Page 30

How do you think the rate of plate movement is determined?

The stripes of normal and reverse magnetic field that parallel the mid-oceanic ridges which enable to read the rate of plate movement. These rates vary considerably.


More from this chapter

All 9 →
1

Multiple choice question.

Which one of the following is the type of plate boundary of the Indian plate along the Himalayan Mountains?


 2

Answer the following questions in about 30 words.

(i) What were the forces suggested by Wegener for the movement of the continents?


(ii) How are the convectional currents in the mantle initiated and maintained?


(iii) What is the major difference between the transform boundary and the convergent or divergent boundaries of plates?


(iv) What was the location of the Indian landmass during the formation of the Deccan Traps?


 3

Answer the following questions in about 150 words.

(i) What are the evidences in support of the continental drift theory?


(ii) Bring about the basic difference between the drift theory and Platetectonics.


(iii) What were the major post-drift discoveries that rejuvenated the interest of scientists in the study of distribution of oceans and continents?


 1

Prepare a collage related to damages caused by an earthquake.