Water Activity

1. What percentage of the world's supply of water is fresh water?

2.5 percent.

2. Where is the world's supply of fresh water found?

On earth.

3. Even though the supply of fresh water is abundant it is still a problem. Why?

Because water and people are not equal.

4. Observe the map of world average annual precipitation (opposite).

(a) Describe the changes in rainfall that occur as you move from the southern to the northern tip of Africa.

In the southern tip of Africa there is a little bit then in the middle also known as the equator there is a lot and if you go a little bit to the northern the water will get less.

(b) Describe the changes in rainfall that occur as you move from the western to the eastern tip of Australia along the Tropic of Capricorn.

Well if you go to the west there is a little bit of rainfall.

5. Observe the map above of water availability per person.

(a) Which parts of the world appear to have a large amount of water available per person?

The north part of the world.

(b) Which parts of the world appear to have a small amount of water per person?

The east part of the world.

6. Observe the diagram of water use.

(a) What are the main uses of water?

For human living and the animals, plants and every living thing on earth needs water and has water.

(b) Which uses have increased the most over the last century?

The twentieth century.