Type the number

Exercise and reference answers

Questions

1. Answer

   29

   Question

   Per cent of the earth's surface covered by continents

2. Answer

   200

   Question

   Million years ago that Pangaea began to split

3. Answer

   7

   Question

   Number of major plates

4. Answer

   1961

   Question

   Year Hess proposed sea floor spreading

5. Answer

   1967

   Question

   Year plate tectonics was proposed

6. Answer

   60

   Question

   Million years ago the Deccan Traps began to form

Instructions

Type the number only.

Explanation