Human Impact on the Environment

Question 1

What may happen to large areas of soil after deforestation?

a. increased gases

b. soil contamination

c. clear cutting

d. soil erosion

Answer 1

d. soil erosion

Question 2

Which of the following measures to reduce air pollution by automobiles has been implemented in some countries, including the United States?

a. emission testing

b. diesel fuel

c. carpool laws

d. truck transport

Answer 2

a. emission testing

Question 3

Which of the following are methods for controlling gaseous emissions?

a. activated charcoal and cyclone dust collector

b. scrubbers and activated charcoal

c. scrubbers and acidic chemicals

d. acidic chemicals and activated charcoal

Answer 3

b. scrubbers and activated charcoal

Question 4

What is a direct cause of the human population explosion in the last few hundred years?

a. lack of sanitation

b. decreased food production

c. limited access to immunizations

d. creation of better medicines

Answer 4

d. creation of better medicines

Question 5

Which term refers to the number of births in a population over a period of time?

a. mortally

b. natality

c. nativity

d. mortality

Answer 5

b. natality

Question 6

What may happen to the Earth if increasing numbers of people emit more greenhouse gases?

a. overexploitation of fish

b. global deforestation

c. biological diversity expansion

d. global warming

Answer 6

d. global warming

Question 7

Which of the following are reasons that crops like soybean and palm are called cash crops?

[ ] They make a quick profit for farmers.

[ ] They are used in a variety of products.

[ ] They grow quickly.

[ ] Their leaves are shaped like dollar bills.

Answer 7

[✅] They make a quick profit for farmers.

[✅] They are used in a variety of products.

[✅] They grow quickly.

[ ] Their leaves are shaped like dollar bills.