Human Impact on the Environment Review #2 | 68 plays

1.

Multiple Choice

30 sec

1 pt

Which human activity has the potential to greatly affect the equilibrium of an ecosystem?

cutting down a few small evergreen trees and using them to make holiday decorations

mowing the playing fi elds in a city park

washing a car with a detergent-based cleaner

emptying an aquarium containing many nonnative fi sh of several species into a local lake

2.

Multiple Choice

30 sec

1 pt

An increased demand for soybeans has led to an increase in converting native forests and grasslands to fi elds for growing soybeans. One negative consequence of this environmental change has been

an increase in natural resources for the future

an increase in the kinds of foods that can be produced

a decrease in suitable habitats for wildlife

a decrease in the need to set aside land for conservation

3.

Multiple Choice

30 sec

1 pt

Building large manufacturing facilities can affect ecosystems by increasing the

atmospheric quality

biodiversity in the area

demand for resources such as fossil fuels

availability of space and resources for organisms

4.

Multiple Choice

30 sec

5 pts

The use of solar panels has increased in the last ten years. A benefit of using solar energy would include

adding more carbon dioxide to the atmosphere

using less fossil fuel to meet energy needs

using a nonrenewable source of energy

releasing more gases for photosynthesis

5.

Multiple Choice

30 sec

1 pt

The governments of many countries have regulations that are designed to prevent the accidental introduction of nonnative insects into their countries. This is because, in these new habitats, the nonnative insects might

become food for birds

not survive a cold winter

not have natural predators

add to the biodiversity

6.

Multiple Choice

30 sec

1 pt

Which action could humans take to slow the rate of global warming?

Cut down trees for more effi cient land use.

Increase the consumption of petroleum products.

Use alternate sources of energy such as wind.

Reduce the use of fuel-effi cient automobiles.

7.

Multiple Choice

30 sec

1 pt

Which human activity can have a negative impact on the stability of a mature ecosystem?

replanting trees in areas where forests have been cut down for lumber

building dams to control the flow of water in rivers, in order to produce electricity

preserving natural wetlands, such as swamps, to reduce fl ooding after heavy rainfalls

passing laws that limit the dumping of pollutants in forests

8.

Multiple Choice

1 min

5 pts

Some birds have recently modified their migratory behavior. Instead of flying to warmer climates during the winter months, the birds are remaining in northern areas where they can consume discarded food that is abundant in landfills. As a result of this change in migratory behavior, many insect populations that the birds normally feed on in the warmer climate areas are now increasing. This is an example of human activity

interfering with ecological succession

increasing competition for infi nite resources

disrupting the homeostasis of organisms

altering the equilibrium of ecosystems

9.

Multiple Choice

1 min

1 pt

Which row in the chart below correctly matches the human activity with its effect?

Row 1

Row 2

Row 3

Row 4

10.

Multiple Choice

30 sec

1 pt

An increase in human population puts a stress on resources that can be renewed, such as

trees and coal

water and gasoline

oil and natural gas

water and trees

11.

Multiple Choice

30 sec

1 pt

Global warming is most closely associated with

increased use of solar panels

increased industrialization

reducing the rate of species extinction

removal of environmental wastes

12.

Multiple Choice

30 sec

1 pt

Humans deplete the most resources when

using wind energy as a power source

generating power by using fossil fuels

using water power to generate electricity

recycling glass and plastics

13.

Multiple Choice

30 sec

1 pt

When deciding on new environmental policies and laws, which term is used to describe the comparison between benefits and costs of human activities?

technology

trade-off

climate change

industrialization

14.

Multiple Choice

1 min

5 pts

Two new wind turbines have recently been built within the Eiffel Tower in Paris. The power that these turbines generate will be enough to power the entire first floor of the tower, including the restaurants, shops, and exhibits. A benefit of using wind power as an alternative source of energy is that it

is nonrenewable, so additional resources will be depleted by tower businesses

is renewable, so it will decrease the environmental impact of the tower businesses

increases the use of resources that cannot be renewed in the future

decreases the amount of fossil fuels available for future generations

15.

Multiple Choice

1 min

1 pt

More than 100 years ago, Earth’s atmosphere contained about 280 parts per million (ppm) of carbon dioxide. It is predicted that by the year 2050, the level of carbon dioxide in the atmosphere could reach 700 ppm, greatly increasing Earth’s temperature. It has been suggested that growing more green plants would help to slow this increase. The best explanation for why increased numbers of plants would help is that plants

serve as food for herbivores

serve as a nonrenewable energy resource

remove carbon dioxide from the atmosphere during respiration

remove carbon dioxide from the atmosphere during photosynthesis

16.

Multiple Choice

30 sec

1 pt

Which human activity most directly causes a signifi cant increase in the amount of carbon dioxide in the atmosphere?

growing corn for food

not using products containing plastics

driving cars long distances

planting large numbers of trees

17.

Multiple Choice

30 sec

1 pt

Nuclear power plants, which produce electrical energy, use large quantities of water for cooling. Often, small fish, larvae, and fish eggs are sucked in along with the cooling water and destroyed. This example illustrates how

industrialization can have positive and negative effects

removal of these organisms has no effect on an ecosystem

direct harvesting increases the natural fi sh population

energy is generated without producing wastes

18.

Multiple Choice

30 sec

1 pt

Although we rely on coal, oil, and natural gas to produce energy, some environmental scientists have proposed that we use less fossil fuel. One reason to support this proposal is to

enable us to preserve rain forests in tropical areas

help us to reduce the production of carbon dioxide gas

allow us to decrease the use of fertilizers on crops

encourage us to end research on wind and water power sources

19.

Multiple Choice

1 min

1 pt

Which row in the chart below represents the most likely changes in the atmosphere due to widespread deforestation?

Row 1

Row 2

Row 3

Row 4

20.

Multiple Choice

1 min

1 pt

Rabbits are not native to Australia. They were imported by European settlers. In 1936, the myxoma virus was introduced into Australia as a means of biological control to infect and reduce the rabbit population. This method of controlling the rabbit population was an attempt to

stop the overpopulation of a native species

stop the overproduction of an introduced species

limit the food sources of the rabbit

limit the number of rabbits brought into the country

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