AnswersDRHS GA-GSE Earth SystemsEarthquakes

Impact of Human Activities on Natural Hazards Answers

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1
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How does replacing grass with concrete and asphalt impact the frequency of floods?

A
The area can absorb rainwater, decreasing floods.
B
The area cannot absorb rainwater, increasing floods.
C
The area will have no impact on the frequency of floods.
D
The rainwater seeps quickly underground decreasing floods.
2
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What causes earthquakes?

A
Drilling or fracking for gas and oil.
B
Deforestation occurring in various regions.
C
Rising air temperatures causing sea ice to melt.
D
Building of cities on the flat area of land (floodplain) by a river.
3

Study the data.

Question illustration
A
If urban population increases, then flooding increases.
B
If urban population decreases, then flooding increases.
C
If urban population increases, then flooding decreases.
D
There is no clear relationship between urban population and the frequency of floods.
4

Read the passage.Flooding occurring along the shoreline of a river is very eroding to the surrounding land. This erosion ends up in the river, causing the river to run muddy. The muddy water decreases the amount of sunlight reaching the aquatic plants, which require sunlight to survive. These aquatic plants provide both a habitat and a food source for fish and other animals that live in the river.

A
Muddy waters have no oxygen and directly kill the fish.
B
Muddy waters increase habitats for fish to thrive and increase population.
C
Muddy waters will kill aquatic plants, which provide food for fish.
D
Muddy waters hide the fish from fishermen so that won’t be caught.
5

Which can contribute to flooding?

A
Planting of trees in a forest.
B
Drilling into the ground for oil and gas.
C
Burning of trash in a high populace area.
D
In a city, the concrete that stops water absorption.
6

What actions can humans take to reduce the impact of wildfires?

A
Increase burning trash.
B
Increase use of water.
C
Decrease planting trees.
D
Decrease logging of trees.
7

How does the extraction and storage of fuel impact the frequency of earthquakes?

A
They provide fuel that can be used to create earthquakes.
B
Drilling and the pressure from wastewater reservoirs increase earthquake activity.
C
Drilling and wastewater reservoirs have no effect on earthquake activity.
D
Earthquakes are only natural events and cannot be triggered by human activities.
8

How does the replacing grass with cement and asphalt impact flooding after a heavy rain?

A
It promotes extra growth of vegetation, which prevents flooding.
B
It doesn't require watering or mowing and helps prevent flooding.
C
It allows rainwater to seep into the ground, which prevents flooding.
D
It prevents rainwater from seeping into the ground, causing water to stay on the surface.
9

Which describes the cause and impact of a wildfire?

A
A controlled fire that is used to clear land and forest for agriculture.
B
An uncontrollable fire that spreads quickly and produces air pollution.
C
An uncontrollable fire that spreads quickly but primarily affects only barren land.
D
A controlled fire in a developed area that is used to clear land for homes.
10

How does burning fossil fuels impact the intensity of hurricanes?

A
Increases the air temperature.
B
Decreases water temperatures.
C
Decreases the melting of ice caps.
D
Increases the amount fish in the ocean.

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