Why is freash water scarce

Why is fresh water scarce?

1. List the main reasons for water is sacristy?

Drought

Global Warming

Natural Climate

Polution

2. a)What is a drought?

b)What type of hardship do you think that a drought could cause if you were living in a village in a poor country such as Ethiopia?

A drought is a shortage of rain fall.

Crops would fail grouth because of no water and consequently people ethier have a) No Food to feed themselves and there family or b) No food to sell to get money to buy food and other needs.

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

Degradation is when a company or person builds a mall, car parks, Houses, Paths and other buildings this affects infiltration into the aquifer which holds fresh water.

4. (a) What is El Nino?

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

El Nino is the weather patten created by oscillation of the Pacific ocean. In Australia there's a droughts because at that time the sea temperatures in the Eastern pacific off the coast of South America warm up and that happens every few years.

5. Observe the map showing the global effects of El Ninio in 1982-83.

It contains information when El Nino hit Africa, China, USA, Colombia, Peru, Aussie, Papua New Guinea, Indonesia and Philippines.

(a) What affects does El Nino have on the availability of fresh water?

An El Nino in Australia is caused by a raising of the ocean surface temperature in the western Pacific Ocean of the coast of South America. When this occurs it causes droughts in Australia. And in South America too much rain falls and floods occur. Floods turn fresh water into dirty non potable water.

(b) Name the countries and describe the problems that arose from decreased rainfall caused by El Nino.

Australia - Drought

Indonesia- Drought

Papua New Guinea - Drought

A photo of Australia in the drought today!