Explaining desertification di Simona Gili

EVALUATION TESTS


1. The standard definition of desert is a place ...
a) which is an arid land near the equator
b) receiving less than 10 inches precipitation annually
c) with an average relative humidity lower than 30% over the year
d) where biological diversity is very low

2. Which of the following is the driest desert ?
a) Sahara
b) Mojave
c) Atacama
d) Gobi

3. What is desertification?
a) Prolonged drought on a arid area
b) Expansion of desert
c) Change of places into a desert
d) Landscape changes in desert

4. Which of the following is believed to be the major cause of desertification?
a) Change in the solar system
b) Natural succession
c) Climate fluctuation
d) High temperature

5. Which of the following human activities would lead to desertification? (It’s possible more than one answer)
a) Deforestation
b) Improper irrigation
c) Surface mining
d) Urbanization

6. Which of the followings is not the impact that happens in areas around deserts?
a) Soil erosion
b) Siltation
c) Compaction of soil
d) Change in water regimes

7. Which of the followings is a measure used to combat desertification among countries?
a) Technology exchange
b) Afforestation
c) Designed irrigation plan
d) Worker training

8. How traditional life style helps prevent desertification?
a) It provides information on scientific research
b) It is highly productive
c) Its land management is highly sustainable
d) It promotes tourism for financial support

9. Desertification is not caused by meteorological problems only. Why?
a) Human activities are involved
b) Climate is not a cause
c) Drought is the major problem
d) None of the above

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