Solar winds are composed of
a. charged particles.
b. aerosols and other pollutants.
c. water vapor.
d. a variety of gases that have no charge.
e. eletromagnetic waves.
Question 2Earths magnetic field protects Earth from some of the
a. pollutants found in the atmosphere.
b. dangerous ozone present in the atmosphere.
c. dangerous gamma rays emitted by the Sun.
d. ultraviolet radiation.
e. particles emitted by the Sun in the form of solar winds and storms.
Question 3Auroras are seen
a. in the Northern Hemisphere only.
b. in the Southern Hemisphere only.
c. in both the Northern and Southern Hemispheres at high latitudes.
d. in both the Northern and Southern Hemispheres near the equator.
e. everywhere on Earth
Question 4Earth's radiative equilibrium temperature is the
a. average temperature at which Earth is absorbing solar radiation and emitting infrared radiation at equal rates.
b. average temperature at which Earth is radiating energy at maximum intensity.
c. average temperature Earth must maintain to prevent oceans from freezing solid.
d. temperature at which rates of evaporation and condensation on Earth are in balance.
e. temperature that humans and animals can survive in on Earth.
Question 5The main process responsible for warming in the lower atmosphere is
a. the release of latent heat during condensation.
b. the conduction of heat upward from the surface.
c. the absorption of infrared radiation.
d. the direct absorption of sunlight by the atmosphere.
e. related to Earths albedo.
Question 6Sunlight that bounces off a surface is said to be ____ from the surface.
a. radiated
b. absorbed
c. emitted
d. reflected
e. conducted
Question 7If the amount of energy lost by Earth to space each year were not approximately equal to that received,
a. the atmosphere's average temperature would change.
b. the length of the year would change.
c. the Sun's output would change.
d. the mass of the atmosphere would change.
e. nothing would change.
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