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atmospheres
Question | Answer |
---|---|
what has changed over geologic time? | The Earth’s atmosphere |
what are good insulators | Water vapor, carbon dioxide and clouds |
what absorbs more heat than non-vegetated areas? | vegetation |
what has no atmosphere therefore no greenhouse effect? | mercury |
The Earth’s current atmosphere is? | 78% nitrogen, 21% oxygen and 1% trace gases? |
what does the biologic activity affect? | the atmosphere ability to hold heat (greenhouse effect). |
what can change because of human activity. | composition |
what can place huge amounts of dust in the air and can set off forest fires and may also increase the amount of volcanic eruptions on Earth | Meteor impacts |
what is Oxidation of metals and animals ? | 6. Oxidation of metals and animals are oxygen sinks which reduce the amount of oxygen in the atmosphere. |