Read the passage below and choose the right answer to the following question (choices are hot or cold ): Increasing air temperature decreases atmospheric pressure. The air gets thinner when it is hot or cold?
hot
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Read the passage below and choose the right answer to the following question (choices are low or high ): Air pressure is less at higher elevations. We need oxygen masks when we climb Everest because the air pressure is low or high?
low
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Read the passage below and choose the right answer to the following question (choices are increase or decrease ): The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away. If the Earth is orbiting the Sun and it begins to move closer to it, what happens the speed the Earth is moving increase or decrease?
increase
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Read the passage below and choose the right answer to the following question (choices are more or less ): More dense water takes up less space than less dense water. Jeff found some not very dense water. He knows it is not very dense because it takes up more or less space than dense water?
more
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