Type the number

Exercise and reference answers

Questions

1. Answer

   7

   Question

   Major continents on the earth

2. Answer

   5

   Question

   Major oceans on the earth

3. Answer

   8848

   Question

   Height of Mount Everest in metres

4. Answer

   71

   Question

   Percentage of the earth covered by water

5. Answer

   21

   Question

   Percentage of oxygen in clean dry air

6. Answer

   5

   Question

   Layers the atmosphere is divided into

Instructions

Type the number only.

Explanation