Unit 7 Test Corrections

What is the main cause of water acidification in southern Africa?

• water contamination caused by oil spills

• deforestation caused by the timber industry

• coal mining and coal-powered electricity generation

• uranium mining and nuclear-powered electricity generation

Why does Nigeria face much larger problems with water pollution than many other countries?

• Nigerian farmers rely heavily on chemical fertilizers due to the poor quality of the country's soil.

• Nigeria's oil industry has caused many oil spills that have contaminated Nigeria's water supply.

• A nuclear power plant in Nigeria leaked dangerous radioactive material into Nigeria's water supply.

• Major cities in Nigeria have grown rapidly and caused increases in industrial and human waste.

The Nile River crosses land in all of the following countries EXCEPT

• Egypt.

• Sudan.

• Nigeria.

• Uganda.

How does the process of deforestation affect soil?

• It adds toxins to the soil.

• It adds nutrients to the soil.

• It leads to increased erosion.

• It leads to increased pollution.

Where is Kenya located in relation to Sudan?

• Kenya is north of Sudan.

• Kenya is south of Sudan.

• Kenya is east of Sudan.

• Kenya is west of Sudan.

Because the lack of water in the environment makes it difficult to irrigate land, where would it be MOST challenging to farm in Africa?

• the rain forest

• the Sahara

• the Sahel

• the savanna