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Card 6

Front

What does monotomic mean?

Back

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Card 7

Front

Stars form in hot or cool regions?

Back

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Card 8

Front

The lifetime of a star depends on what?

Back

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Card 9

Front

Gravity could only --- the expansion of the universe

Back

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Card 10

Front

'Substances that cannot be broken down into simpler ones by any chemical means' is a definition for

Back

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Card 11

Front

'Pure substances made up of two or more elements in a fixed, characteristic chemical composition' is the definition for

Back

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Card 12

Front

Argon makes up what percentage of the Earth's atmopshere?

Back

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Card 13

Front

Oxygen makes up what percentage of the Earth's atmopshere?

Back

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Card 14

Front

From Earth to space what is the vertical structures?

Back

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Card 15

Front

What is the Section of the troposphere that is directly influenced by the Earth’s surface

Back

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