Unit 7 Impact of Humans Test Review

Unit 7 Impact of Humans Test Review

6th - 8th Grade

35 Qs

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Unit 7 Impact of Humans Test Review

Unit 7 Impact of Humans Test Review

Assessment

Quiz

Science

6th - 8th Grade

Hard

Created by

Amy Zuber

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35 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the greenhouse effect?

the burning of fossil fuels causes gases to mix with water in the atmosphere
ground level ozone and vehicle exhaust react in the presence of sunlight
certain gases such as carbon dioxide act like a blanket and keep the sun's energy close to earth

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

According to the pie chart, how much carbon dioxide emissions come from transportation?

7.9%
25.9%
13.1%
19.4%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is one way that humans can lessen their impact on the environment?

Recycle
Eat more meat
Drive large vehicles
Increase agricultural area

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

As the human population grows, the demand for natural resources increases. Which activity wastes a natural resource?

riding the bus

keeping the lights turned off

cooling a car or house by opening windows

throwing an aluminum can in the trash

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the best explanation for the rise in atmospheric CO2 levels since the 1800's?

natural fluctuations of the climate

eruptions of large volcanoes

increased use of fossil fuels by humans

photosynthesis by algae

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What will most likely happen if the human population continues to grow at current rates?

There will be an decrease in the number of strong hurricanes

There will be a decrease in water pollution

There will be an increase in nitrogen levels in the atmosphere

There will be fewer natural resources available for future generations

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas suggests that

ecosystems are interconnected and human action can alter ecosystem equilibrium.
recycling programs have failed to conserve biotic resources.
natural processes can alter ecosystem stability.
direct harvesting practices have led to irreversible destruction of ecosystems.

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