AnswersSC332 Environmental Science BSoil and Agriculture

Soil and Agriculture Answers

17 verified answers4 views
1
Free Preview

Which of the following is not an agricultural technique?

A
irrigation
B
selective breeding
C
livestock herding
D
none of the above
2
Free Preview

Field patterns are the same in all parts of the world.

A
T
B
F
3

What is the purpose of strip cropping?

A
prevent soil erosion
B
maintain nutrient levels
C
reduce plant disease
D
all of the above
4

Which of the following is not true concerning tropical plantations?

A
They are generally found in humid, tropical climates.
B
Wheat and corn are common products of tropical plantations.
C
Most crops from tropical plantations are exported.
D
Cocoa, coffee and tea are common products of tropical plantations.
5

The high productivity of American agriculture is exemplified by _______.

A
low crop yields per farm worker
B
high crop yields per farm worker
C
the small cultivated area per inhabitant
D
the small cultivated area per farmer
6

Crop rotation is a method of soil conservation because _______.

A
the land produces more than one type of crop
B
it requires plowing and tilling that reduces soil compaction
C
it does not use the same parcel of land in sequential seasons
D
it avoids the depletion of soil nutrients
7

Which of the following is the most damaging method of soil remediation?

A
soil excavation and disposal
B
soil aeration
C
heating and vapor extraction
D
microbial digestion
8

Which of the following best explains why soil conservation is important to human agriculture?

A
Erosion prevention prevents millions of dollars in damage from mudslides.
B
It is easier to prevent the degradation of old soil than it is to generate new soil.
C
If the soil salinity gets too high crops will not be able to grow in it.
D
Soil contamination is a hazard to human and animal health.
9

The same agricultural practices are used in every country of the world.

A
T
B
F
10

How does flooding rice fields reduce the need for herbicides and pesticides in rice farming?

A
While rice has a submerged growth state, most weeds and pests do not.
B
Flooding the fields causes the soil to degrade so weeds cannot take root.
C
Residual herbicides and pesticides from previous seasons dissolve in the water.
D
All of the above
11

Pastoral farming is best described as _______.

A
a method of raising livestock and moving herds
B
an African method of agriculture
C
a method of cultivating crops on poor soils
D
a common method of desert farming
12

How does flooding rice fields reduce the need for herbicides and pesticides in rice farming?

A
While rice has a submerged growth state, most weeds and pests do not.
B
Flooding the fields causes the soil to degrade so weeds cannot take root.
C
Residual herbicides and pesticides from previous seasons dissolve in the water.
D
All of the above
13

Which of the following are some reasons for the variations in agricultural practices around the world?

A
topography
B
tradition
C
amount of rainfall
D
all of the above
14

Contour farming is a method for plowing across the slope of steep hills.

A
T
B
F
15

Why is Dutch agriculture critically dependent upon technology?

A
It produces almost 50% of the world supply of cut flowers and indoor plants.
B
It relies almost exclusively on genetically engineered crops.
C
Dutch agriculture is characterized by plant production in greenhouses.
D
Dutch fruit and vegetable production contributes to the global food supply.
16

Which of the following best explains why soil conservation is important to human agriculture?

A
Erosion prevention prevents millions of dollars in damage from mudslides.
B
It is easier to prevent the degradation of old soil than it is to generate new soil.
C
If the soil salinity gets too high crops will not be able to grow in it.
D
Soil contamination is a hazard to human and animal health.
17

Which of the following is not true concerning tropical plantations?

A
They are generally found in humid, tropical climates.
B
Wheat and corn are common products of tropical plantations.
C
Most crops from tropical plantations are exported.
D
Cocoa, coffee and tea are common products of tropical plantations.
18

Contour farming is a method for plowing across the slope of steep hills.

A
T
B
F
19

The main target when controlling the acidity of soils is ______.

A
neutralizing the pH
B
adding base
C
replacing lost cation nutrients
D
eliminating humic acids
20

The high productivity of American agriculture is exemplified by _______.

A
low crop yields per farm worker
B
high crop yields per farm worker
C
the small cultivated area per inhabitant
D
the small cultivated area per farmer

Did you find these answers helpful?

More from this Course

Quiz
21 verified answers

The Importance of Trees

Quiz
13 verified answers

Rainforest Loss

Quiz
18 verified answers

Urban Growth