Exercises

I. Match the words from the box with their definitions.

1. a very heavy fall of rain___________________________________________________.

2. relating to things that exist on planets other than Earth___________________________.

3. the process in which heat is unable to escape from the atmosphere and causes the temperature of the Earth to rise______________________________________________.

4. the process when a volcano explodes inside and flames, rocks and lava come out of the top______________________________________________________________________.

5. rain, snow, hail, etc ______________________________________________________.

6. a storm with a lot of snow and strong winds___________________________________.

7. a very large mass of ice that moves very slowly________________________________.

8. to say what you think will happen in the future_________________________________.

9. worth a lot of money______________________________________________________.

10. the hot wet substance like a thin cloud that is produced when water is heated________.

steam deluge eruption blizzard glacier to predict greenhouse effect extraterrestrial precipitation precious

II. Answer the questions.

1. What substance naturally exists in all three basic forms?

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2. How did water first appear on the Earth?

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3. Will our supply of water run out?

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4. Who shaped our primitive planet long before any life evolved?

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5. What was a perfect place for life to start?

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6. What is the speed of water when it travels through a tree?

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7. Where does half of all rain fall?

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8. Does desertification begin to increase or decrease?

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9. What is the temperature beneath the ice?

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10. How many liters should a man drink to stay hydrated?

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11. What do scientists predict?

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