Atmosphere


1	The largest component of the lower atmosphere by total volume is __________.
		oxygen
		nitrogen
		helium
		argon
		water vapor

2	Oxygen is added to the atmosphere by
		the rusting of iron
		solar radiation
		decomposition (rotting) of dead animals
		burning of coal
		green plants

3	The lowest layer of the atmosphere is the _______________.
		mesosphere
		troposphere
		thermosphere
		stratosphere
		exosphere

4	The hottest layer of the atmosphere is the ______________.
		thermosphere
		troposphere
		stratosphere
		mesosphere
		exosphere

5	The layer of atmosphere with the most water vapor is the _____________.
		stratosphere
		exosphere
		mesosphere
		troposphere
		stratosphere

6	A layer of _____________ in the stratosphere absorbs ultraviolet light from the sun.
		argon
		neon
		ozone
		carbon dioxide
		nitrogen

7	Argon is the ___________ most plentiful gas in the atmosphere.
		first
		second
		third
		fourth
		fifth

8	Which of the following is a major greenhouse gas?
		nitrogen
		neon
		chlorine
		carbon dioxide
		helium

9	As you go up in altitude in the atmosphere, air pressure generally ___________.
		decreases
		increases
		decreases for a few miles, then increases
		increases for a few miles, then decreases
		has no predictable pattern

10	The amount of sunlight striking a given location on the Earth primarily depends on the location's latitude.
		True
		False