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Science Q3T3
Test Description: Ch. 15 Test
Instructions: Answer all questions to get your test result.
1) Where is Earth's atmosphere most dense?
A
on a mountaintop
B
at the heights jets fly
C
at its top
D
at its bottom
2) What happens to most visible light when it enters the atmosphere?
A
It is reflected
B
It passes through
C
It is absorbed
D
It is emitted
3) Earth's atmosphere is mostly
A
nitrogen and oxygen
B
oxygen and carbon dioxide
C
nitrogen and water vapor
D
oxygen and hydrogen
4) Waves of _____ radiation have more energy than waves of radiation that you can see
A
infrared
B
visible
C
greenhouse
D
ultraviolet
5) Which of these is a sudden event that can change Earth's atmosphere?
A
a rainstorm in a mountainous area
B
the release of oxygen by plants
C
the eruption of a very large volcano
D
the decay of animals after they die
6) Which of the following is true?
A
Greenhouse gases absorb and give off infrared radiation
B
Greenhouse gases absorb and give off ultraviolet radiation
C
Greenhouse gases screen out radiation and keeps earth's surface from heating up
D
Greenhouse gases speed up the release of radiation from earth to outer space
7) Ozone is a molecule that is
A
made of three atoms of the element oxygen
B
mainly responsible for the greenhouse effect
C
found mostly throughout the troposphere
D
made mostly of carbon dioxide and water
8) Which of these statements is true?
A
Air is more dense at high altitudes.
B
Air density is the same at all altitudes.
C
Air is less dense at high altitudes.
D
Air is less dense at low altitudes.
9) What are the two most common gases in air?
A
oxygen and water vapor
B
argon and carbon dioxide
C
nitrogen and oxygen
D
oxygen and hydrogen
10) Which of these statements is true?
A
About half of the Sun's energy is reflected by Earth's surface
B
About half of the Sun's energy is absorbed by Earth's surface
C
About half of the Sun's energy is reflected by clouds and the atmosphere
D
About half of the Sun's energy is absorbed by clouds and the atmosphere
11) Which part of the atmosphere contains a type of gas that absorbs UV radiation?
A
mesosphere
B
stratosphere
C
thermosphere
D
troposphere
12) Most visible light that enters the atmosphere
A
is absorbed
B
passes through
C
is reflected
D
emits radiation
13) Which is not an air pollutant?
A
oxygen
B
smog
C
pollen
D
ozone
14) Which of these will help reduce greenhouse gases?
A
driving everywhere
B
using more fossil fuels to power cars
C
cutting down forests
D
living in houses that use less energy
15) Which layer of Earth's atmosphere contains a gas that absorbs ultraviolet radiation?
A
thermosphere
B
mesophere
C
troposphere
D
stratosphere
16) Which of these best describes the greenhouse effect?
A
the absorption and emission of infrared radiation by gasses in the air
B
the absorption and emission of ultraviolet radiation by gases in the air
C
the absorption and emission of infrared radiation by clouds
D
the absorption and emission of ultraviolet radiation by clouds
17) What is conduction?
A
the transfer of energy by a gas or a liquid in motion
B
the transfer of energy in a cycle across a distance
C
the transfer of energy in the form of certain waves
D
the transfer of energy as a result of direct contact of matter
18) Air pollutants can
A
add important gases to the air
B
harm humans, plants, and other living things
C
increase the amount of ozone in the stratosphere
D
decrease greenhouse gases
19) Which layer of Earth's atmosphere protects organisms from harmful ultraviolet radiation?
A
thermosphere
B
mesophere
C
troposphere
D
stratosphere
20) Which of these reflects the most solar radiation?
A
greenhouse gases
B
the mesosphere
C
ozone
D
clouds
*select an answer for all questions
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