The Sun Answers

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1
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In order to recreate the process of energy production that takes place in the Sun, scientists use

A
hydrogen gas and add heat and pressure.
B
helium gas and remove heat and pressure.
C
hydrogen gas, add heat, and remove pressure.
D
helium gas, remove heat, and add pressure.
2
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Scientists around the world have been working for decades on perfecting the process of nuclear fusion in the lab. Which statement justifies this research?

A
Scientists are looking for a way to generate an unlimited source of hydrogen.
B
Scientists are looking for a way to absorb the energy produced by nuclear bombs.
C
Scientists are looking for a way to produce the uncommon noble gas helium.
D
Scientists are looking for a way to create cheap, safe, and sustainable energy.
8

Which elements are the main components of the Sun?

A
carbon and oxygen
B
nitrogen and hydrogen
C
hydrogen and helium
D
helium and neon
9

What is an astronomical unit?

A
the average distance between planets in the solar system
B
the average distance between the Earth and the moon
C
the approximate diameter of the Sun including its atmosphere
D
the average distance between the Earth and the Sun

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