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Traveling Into Space — Unit test Answers

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21
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The space race was the rivalry in the exploration of space between the United States and the Soviet Union.

A
T
B
F
22
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Please select the word from the list that best fits the definition

A
Heliocentric
B
Geocentric
23

How is mass-energy equivalence demonstrated in the Sun?

A
Hydrogen nuclei fuse to form a larger nucleus, and a small amount of mass is converted into energy.
B
Hydrogen nuclei fuse to form a larger nucleus by absorbing a large amount of energy and converting it into a small amount of mass.
C
Hydrogen nuclei form from smaller nuclei, and a small amount of mass is converted into energy.
D
Hydrogen nuclei form from smaller nuclei by absorbing a large amount of energy and converting it into a small amount of mass.
24

When the north end of Earth’s axis is tilted toward the sun, North America will experiencea.more indirect rays and shorter days.b.more indirect rays and longer days.c.more direct rays and shorter days.d.more direct rays and longer days.

A
A
B
B
C
C
D
D
25

What is the temperature of the middle most layer of the Sun's atmosphere?

A
It’s temperature is 5,500 degrees celsius to 6,000 degrees celsius.
B
It’s temperature is 6,000 degrees celsius to 20,000 degrees celsius.
C
It’s temperature is 20,000 degrees celsius to 2,000,000 degrees celsius.
D
It’s temperature is 2,000,000 degrees celsius to 3,000,000 degrees celsius.

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Traveling Into Space — Unit test Answers…