Unit Test — Unit test Answers

25 verified answers6 views
41
Free Preview

Community redevelopment programs are primarily directed towards _______.

A
preventing pollution in commercial and residential properties
B
improving property values by eliminating blighted buildings
C
establishing basic sanitation in urban environments and communities
D
cleaning up abandoned, unused, and polluted properties
42
Free Preview

Dead zones in waterways can occur as the result of fertilizer runoff.

A
T
B
F
43

Wetlands and estuaries are critical ecosystems, but do not require protection.

A
T
B
F
44

How can fertilizer use be detrimental to the environment?

A
It can enter waterways, causing them to accumulate an excess of nutrients.
B
High levels of fertilizer in bodies of water can lead to excess algal growth.
C
Fertilizer can lead to oxygen depletion, and be harmful to organisms in waterways.
D
All of the above
45

What is the current greatest threat to agricultural sustainability?

A
erosion
B
water pollution
C
air quality
D
all of the above
46

Which water source may become polluted as it travels over land?

A
ponds
B
groundwater
C
oceans
D
runoff
47

Environmental risks arise from all of the following except _______.

A
pesticides
B
pollution
C
industrial chemicals
D
groundwater
48

Which of the following is not being undertaken to reduce the risks to human health from pesticides?

A
only promote pesticide use in rural environments
B
protect workers exposed to pesticides occupationally
C
regulate the safe use of pesticides
D
reduce the concentration of pesticides found in watersheds
49

Decreasing the use of pesticides and herbicides can help agricultural sustainability.

A
T
B
F
50

Which of the following is the most likely cause for future water shortages?

A
global warming
B
increased agriculture
C
water pollution
D
erosion
51

The impacts of natural disasters are limited to property damage and loss of life.

A
T
B
F
52

The use of _______ is expected to increase in the future.

A
coal
B
natural gas
C
renewable energy
D
all of the above
53

Dryland planting can benefit the environment by reducing the need for tillage.

A
T
B
F
54

The majority of damage caused by volcanoes is from lava flows.

A
T
B
F
55

How can global warming lead to changes to the Earth’s surface?

A
Global warming can lead to an increased number of earthquakes, which change the Earth’s surface.
B
Global warming can lead to glaciers melting, causing flooding to areas and the decrease of glacial land masses.
C
Global warming leads to a decrease in water levels of coastal wetlands.
D
Global warming cannot lead to changes to the Earth’s surface.
56

How is the world population projected to change in the next few decades?

A
It is projected to level off.
B
It is projected to decrease steadily.
C
It is projected to increase steadily.
D
It is projected to double within 5 years.
57

Which of the following is not a direct consequence of groundwater use?

A
reduced water storage
B
increased surface water levels
C
reduced river flow
D
decreased spring discharge
58

How do conservation tillage practices in agriculture benefit the soil?

A
They increase soil erosion rates.
B
They decrease water absorption.
C
They decrease water storage.
D
They increase soil nutrient levels.
59

Which of the following is not true concerning the impact of volcanoes?

A
Acid rain can result from volcanic eruptions.
B
Tephra are a combination of water and rubble.
C
Damage can continue for years after the initial eruption.
D
The volcanic explosion is the pyroclastic flow.
60

Which is a sustainable practice?

A
operating wind farms
B
clear cutting
C
flood irrigation
D
overfishing

Did you find these answers helpful?