Geo Active Book

1.List the main reasons for water scarcity
Water pollution, population growth, land degradation, variations in climate


2.What is a drought? What type of hardships do you think that a drought could cause if you were living in a village in a poor country such as Ethiopia?
Drought means a long period when there is no rain and people do not have enough water.
I think the hardships would be like this...

• always starving for water
• no rain so the crops may stop growing
• no natures growth

3.How does land degradation affect the supply of fresh water?

4.(a) What is EL Nino?

Elnino is the wind that refers to a warming that develops every three to five years in the Pacific Ocean off the coast of Peru. That probably is a main cause of drought

(b) Why does EL Nino often cause drought in Australia?

Because the EL nino is accompanied by a reversal of air pressure across the Pacific, resulting in high pressure systems building up most of Australia

5.Observe the map showing the global effects of El Nino in 1982~83

(a) What effects does EI Nino have on the availability of fresh water?