Unit 9 Flashcards

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1
Q

Atmosphere

A

a mixture of gases that surrounds a planet or moon

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2
Q

gravity

A

a force of attraction between objects that is due to their masses

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3
Q

accommodations

A

changes that must be made in an environment to maintain livable conditions for humans

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4
Q

manned

A

space exploration-humans on board space craft

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5
Q

pressure

A

contains physical force exerted on or against an object by something in contact with it

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6
Q

proximity

A

closeness

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7
Q

radiant energy

A

the energy we get from the sun includes infrared and ultraviolet energy

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8
Q

temperature

A

measurement of heat

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9
Q

solar system

A

sun, planets, and all to other objects that revolve around the sun

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10
Q

micro gravity

A

condition in which people or objects appear to be weightless

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11
Q

habitable zone

A

range of orbit around a star in which a plant can support liquid water

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