Unit Test — Unit test Answers

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In Africa, allowing livestock to feed for too long in the same area, planting on the same land over and over, and cutting down forests can all lead to __________.

A
overgrazing
B
desertification
C
overfarming
D
deforestation
2
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All of the following are benefits resulting from the construction of the Aswan High Dam in Egypt except __________.

A
the floodwaters of the Nile are controlled
B
more arable land is created using irrigation from the dam’s reservoir
C
the dam generates 15% of Egypt’s electricity
D
the Nile River Delta ecosystem is protected
3

The main cause of Dubai’s environmental problems has been __________.

A
dam construction
B
irrigation
C
oil spills
D
rapid growth
7

Why is it difficult to stop the processes of slash and burn farming, overfarming, and overgrazing in Africa?

Answer not available
9

Using four or more complete sentences, identify at least two benefits and two drawbacks of dams. Be sure to discuss the Ataturk Dam and the Marsh Arabs in your response.

Answer:

Dams can generate hydroelectric power and store water for irrigation and drinking supplies. They can also help control floods, but their reservoirs may flood homes and habitats, and dams can reduce the water flowing downstream. Turkey’s Ataturk Dam on the Euphrates provides electricity and water for irrigation, but it can affect the amount and timing of water reaching Syria and Iraq. Reduced water flows, along with Iraqi government drainage policies, contributed to the shrinking of the marshes where the Marsh Arabs lived, damaging their communities and livelihoods.

11

Which of the following statements about water resources in the Middle East is true?

A
Most of the region’s water is used by factories.
B
All people across the region have equal access to clean water.
C
The region’s water supply has been heavily polluted.
D
There are a lot of renewable freshwater resources in the region.
12

Describe the growth experienced by the city of Dubai. What environmental problems has the city faced? Your answer should be written in four or more complete sentences.

Answer:

Dubai grew rapidly as oil wealth funded development, and the city later expanded its economy through trade, tourism, finance, and real estate. Its growth is visible in its skyscrapers, expanding neighborhoods, and large projects built on reclaimed land. The city faces water scarcity and relies heavily on desalination, which uses substantial energy. High energy use, air pollution, and coastal construction that harms marine habitats are also environmental problems.

13

Which of the following is an example of how people modify the environment in Africa? i. cutting down trees in order to plant crops or build homes ii. building a dam on a river iii. allowing herd animals to graze on native grasses

A
i. only
B
ii. only
C
ii. and iii. only
D
i., ii., and iii.
14

The map below shows the Jordan River. Which countries had the most serious disputes over water rights to the Jordan River?

Question illustration
A
Jordan and Israel
B
Syria and Lebanon
C
Jordan and Syria
D
Syria and Israel
15

The map below shows desalination plants in the Middle East. Which statement best explains why desalination plants are located in areas other than Egypt and the northern sections of the Middle East?

Question illustration
A
These areas already have an adequate supply of freshwater.
B
These areas get their freshwater from other countries.
C
These areas have access to an adequate supply of ocean water.
D
These areas have mountain ranges that prevent construction.

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Unit Test — Unit test Answers — HVA 26-27 IM…