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6.7a - Atmosphere

Atmospheric Composition

QuestionAnswer
Air contains the gaseous state of water called _______  _________.  water vapor
_____ is the amount of water vapor in the air.  Humidity
Some atmospheric particulates pollute the air and may make it unhealthy to breathe. True
Without greenhouse gases, nighttime temperatures would be extremely _____. cold
Earth's _____________ helps keep the Earth's atmosphere and water close to the Earth's surface, which makes Earth the only planet where life can exist. gravity
Air is a mixture of gaseous elements and _______________. compounds
What element makes up the largest proportion of air? Nitrogen - 78%
The mixture of air includes: _____.  nitrogen, oxygen, argon, and carbon dioxide along with other trace elements. Water vapor is also a part of air's composition.
Without the _________________, there would be no clouds or rain. atmosphere
Earth’s atmosphere is dynamic and comprised of interacting and interdependent ______________. elements
Greenhouse gases _____ heat in the atmosphere. trap
Weathering would not happen without the atmosphere. (True or false) true
Earth's atmosphere helps to protect our planet by ____________ the planet's temperature. regulate
Earth's atmosphere helps to protect our planet by ______________ harmful solar radiation. absorbing
What percentage of the atmosphere is oxygen? 21%
Warm air rises because it is ______ dense. (more or less) less
Cold air sinks because it is ____________ dense (more or less) more
Created by: Johnsopd
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