Unit Test — Cumulative exam Answers

25 verified answers2 views
1
Free Preview

Which is a cause of desertification?

A
farming
B
creating reservoirs
C
overgrazing
D
driving motor vehicles
2
Free Preview

Which statement accurately describes the relationship between air pressure, air density, or altitude?

A
As altitude increases, pressure increases.
B
As altitude increases, air density increases.
C
Air pressure and density are lowest at sea level.
D
Denser air exerts more pressure than less dense air.
3

Which correctly lists the three weather factors that are indicators of climate change?

A
sunsets, wind patterns, clouds
B
ocean currents, ice cores, temperature
C
temperature, wind patterns, ice cores
D
wind patterns, temperature, ocean currents
5

Which two characteristics do polar and dry climates have in common?

A
high altitude and very cold winters
B
very cold winters and contrasting seasons
C
contrasting seasons and very little precipitation
D
very little precipitation and few, specialized plants
6

Which action has a positive effect on air resources?

A
using fossil fuels
B
building new homes
C
walking to work or school
D
removing vegetation such as trees
7

Which could cause topsoil to be lost?

A
wind and water erosion
B
lack of use
C
compaction
D
desertification
8

Which action would best help prevent groundwater erosion?

A
using breakwaters
B
packing down soil
C
building drains with outlets
D
increasing the slopes of riverbanks
9

What must happen for most areas on Earth to experience all four seasons?

A
The Sun must reach its highest point in the sky.
B
The Northern Hemisphere must experience winter.
C
The axis must be tilted at a certain angle that remains unchanged.
D
The north end of Earth’s axis must always point away from the Sun.
10

Which is an issue that governments must consider before passing conservation policies?

A
urbanization implications
B
cost to implement conservation policies
C
desertification implications
D
cost to implement deforestation
11

Which activity is part of managing water resources?

A
studying water to see whether it is polluted
B
taking a long hot bath to stay warm
C
drinking water and using it for swimming and boating
D
transporting water to areas where it is needed
12

Where are jet streams found?

c
close to the poles
i
in the middle latitude
t
toward the equator
i
in the upper atmosphere
13

Which event can cause slumps, landslides, and mudflows to occur?

A
earthquakes
B
hurricanes
C
snowfalls
D
thunderstorms
14

Which is one benefit that mangrove trees provide to surrounding coastal wetlands?

A
They hold soil in place.
B
They store floodwaters.
C
They maintain surface water flow.
D
They filter water and improve water quality.
15

What leads to the formation of a windchill factor?

A
Earth’s rotation influences air movement along a curved path.
B
Air flows steadily from different directions at certain wind speeds.
C
Warm air rises when an area of high pressure is present over land.
D
There is a change in air temperature and increase in high wind speeds.
17

Which describes an effect that ocean currents have on short-term climate change?

A
Ocean currents increase the strength of prevailing winds, which can cool the air and land.
B
Ocean currents can carry cold water, which can cool the air and land.
C
Ocean currents increase hurricane activity, which can raise the temperature of the air and land.
D
Ocean currents carry cold water, which may not affect hurricane activity and lower the temperature of the air and land.
18

Which is a natural factor that causes long-term climate change?

A
Earth’s position
B
pollen grains
C
fossils
D
ice cores
19

Which belt is a global wind belt found in the middle latitudes?

A
doldrums
B
jet streams
C
trade winds
D
prevailing westerlies
20

What does relative humidity measure?

A
the amount of water in cirrus clouds
B
the amount of water that has evaporated into the air
C
the amount of frozen water that has condensed from the air
D
the amount of water vapor in the air compared to the amount the air can hold

Did you find these answers helpful?