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