Jane Goodall

Today's our last day of science!:(. and its my favrourite subject!, so i'm going to miss it!:(.

1. List 3 factors that are causing the water shortage
Climate change, population, and increasing human demand.

2. How much of the worlds total water supply is usable fresh water?
2.5 percent

3. What happened to the world population and water use in the 20th centuray?
The worls population tripled to six billion its water resources grew six- fold in that time.

4. How does climate change affect water supply?
Though global warming may not reduce the overall supply of water it is expected to dramatically shift weather patterns resulting in extreme weather like droughts and flooding.

5. Predict the future
I think global warming will change the worl in a big way.