Tuesday, November 24, 2009
Vocab words pg 229 1-5
1. List the main reasons for water scarcity
One of the main reason is low rainfall. Land degradation because then the water cannot infiltrate into the ground.
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.
A drought is like there is barely any water and the air is not so moist. Living in Ethiopia while there is a drought must suck since Ethiopia does not have much water to begin with.
3.How does land degradation affect the supply of fresh water?
Because the water that rains cannot get into the ground so it cannot store fresh water.
4.(a)What is El nino? (b)Why does El Nino often cause drought in Australia?
El nino is the air getting warmer of the coast of Peru. It makes australia have droughts since all the moist wind that makes Australia moist gets blown away therefore causing it to have droughts.
5. (a)Observe the map showing the global effects of El Nino have on the availability of fresh water.
(b)Name the countries and describe the problems that arose from decreased rainfall caused by El Nino.
Australia, Wheat exports threatened by drought conditions across grain growing areas,particularly in new south whales. Papua new guinea, Drought related failure of food crops,leading to famine conditions requiring food aid. Peru, Flooding, Fishing operators affected by lower catch as anchovy and pacific sardine move offshore to escape warm currents(5 C above normal temperature). Colombia, Fishing operators affected by lower catch (down 20%). United states, Rainfall above normal in north western states(double the historical averages). Philippines, Lower rice harvest following drought. China, Agricultural land under threat from drought in northern regions and flooding in southern regions. Indonesia, High air pollution levels, following forest fires. Africa, Reduced corn crop in sub saharan region.
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1 comment:
Most of this is ok, Will, but #5 is incomplete. Check the book again.
Your answers should be in your own words, not copied straight out of the text.
mh
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