The Earth: What's Right; What's Wrong?

15 Points Per Correct Answer - No time limit  

1. Most of the world's water is saline (salty). True False

2. Diamond is an example of an sedimentary rock that is formed by the precipitation of carbon atoms from an aqueous solution. True False

3. All the continents of today were once part of a vast super-continent called 'Gondwanaland'. True False

4. The Himalayas are an example of fold mountains. True False

5. The Earth's shape is perfectly spherical; if we ignore the existence of mountains, valleys, trenches, etc., and other factors that contribute to its rugged terrain. True False

6. Over 9/10th of the Earth's surface is covered by water. True False

7. Oxygen forms the majority of the Earth's atmosphere. True False

8. Plants and animals contribute to the weathering of rocks, which means that they play a role in the breaking down of rocks into smaller pieces. True False

9. The lithosphere floats on a layer of semi-molten rock called the asthenosphere. True False

10. Rain-water is neutral, i.e. it is neither acidic nor alkaline. True False