Download Environmental Science Test Review – 3.4, 3.6, 3.8 1 Although some

Environmental Science Test Review – 3.4, 3.6, 3.8
1 Although some of these organisms are destructive, this class of organism is also the
source of antibiotics.
2 Chlorinated hydrocarbons:
a. are biodegradable
b. selectively kill only specific insects
c. save human lives by killing insects that carry diseases.
d. were more expensive than other types of pesticides.
3 The first insecticides were:
a. carbamates
b. chlorinated hydrocarbons
c. naturally occurring minerals
d. organophosphates
4 The most commonly used pesticides today are ________.
5 This disease significantly reduced the population of Europe during the 14th Century.
6 When these pests are plentiful, they destroy thousands of acres of grasslands in the western U.S.
7 The organisms that cause malaria and yellow fever are carried by ______.
8 Which of the following seeds is used to make a highprotein mixture that is similar to
milk?
a. corn
b. rice
c. soybeans
d. wheat
9 The Green Revolution was responsible for increasing the:
a. amount of food available to feed people
b. amount of land that could be tilled.
c. amount of protein in the diet.
d. number of people that died of starvation.
10 Developments that increase the productivity of the land will not solve the world
hunger problem unless:
a. a less expensive subsurface drip irrigation system is developed.
b. farmers are trained in the methods used by farmers in the United States.
c. farmers can afford larger equipment so that they can farm more land.
d. the population growth rate is reduced.
11 The technology that has done the most to help feed the world’s hungry is the
production of:
a. central pivot irrigation systems
b. better breeds of milk producing animals
c. high yielding disease resistant seed varieties
d. mechanical harvesters
12 Farmers in this country produce the highest yields per acre.
13 Which of the following will affect the ability of a country to produce food for its
people?
a. climate
b. soil type
c. population growth rate
d. all of these
14 How does the fertility rate of most Asian countries compare to the replacement level?
a. The fertility rate in most Asian countries is higher than the replacement level.
b. The fertility rate in most Asian countries is lower than the replacement level.
c. In most Asian countries, the fertility rate is equal to the replacement level.
d. The fertility rate can not be compared to the replacement level.
15 Which of these countries is the only country which produces enough food to feed its
people?
a. China
b. India
c. Russia
d. United States
16 To maintain a relatively stable population the fertility rate must be near _______.
17 In most countries, mortality rates have declined. In which region have they recently
increased?
a. Africa
b. China
c. former Soviet Union
d. Europe
18 The population growth rate of a country is due to:
a. the health care available.
b. the number of women of childbearing age.
c. the net immigration rate.
d. all of these factors.
19 Productivity refers to:
a. the amount of food produced per acre.
b. the rate of soil formation.
c. the cash value of a crop.
d. the rate of soil erosion.
20 Alternating bands of close growing plants (cover crops) with plants that are planted in
rows (row crops) is known as:
a. crop rotation
b. contour planting
c. strip cropping
d. monocluture
21 Farmers on the Great Plains, planted rows of trees and shrubs that helped reduce
erosion by:
a. reducing the speed of the wind
b. increasing the amount of infiltration
c. preventing the formation of gullies
d. preventing mass erosion
22 Which of the following statements is true?
a. Reducing erosion reduces water pollution.
b. Erosion is a natural process and the rate cannot be controlled.
c. Erosion decreases the productivity of the soil.
d. both A and C
23 The federal agency that helps landowners to protect the land and water is the:
a. Natural Resources Conservation Service
b. Save the Soil Coalition
c. Soil Conservation Agency
d. United States Geological Survey
24 Which of the following methods of farming destroys the soil?
a. planting the same crop in the same soil year after year.
b. plowing the land with a moldboard plow.
c. no till planting and crop rotation.
d. both A and B
Answer Key:
1. fungi
2. c
3. c
4. herbicides
5. bubonic plague
6. grasshoppers
7. mosquitoes
8. c
9. a
10. d
11. c
12. Japan
13. d
14. a
15. d
16. 2
17. a
18. d
19. a
20. c
21. a
22. d
23. a
24. d