Science 8 Test 7

Which type of UV radiation is only partially absorbed by the ozone layer, allowing some of it to reach the earth's surface?

• UVA

• UVB

• UVC

• UCD

How does air normally move in the atmosphere?

• low pressure to high pressure

• high altitude to low altitude

• high pressure to low pressure

• low altitude to high altitude

What name is given to the upper atmosphere because of its distinct layers?

• heterosphere

• troposphere

• mesosphere

• homosphere

What is the normal value of atmospheric pressure at sea level?

• 6.9 millibars

• 14.7 millibars

• 1013 millibars

• 110,000 millibars

Which temperature layer of the atmosphere contains the ozone layer?

• thermosphere

• stratosphere

• stratopause

• tropopause

Which type of current causes most of the earth's weather?

• conduction current

• convection current

• radiation current

• electromagnetic current

What is the coldest point in the atmosphere?

• turbopause

• tropopause

• stratopause

• mesopause

At what point on the earth's elliptical orbit does Earth receive the greatest amount of insolation?

• solhelion

• perihelion

• aphelion

• epithelion

What global winds occur at the earth's surface in high latitudes?

• prevailing westerlies

• polar easterlies

• jet streams

• trade winds

What portion of Earth's magnetic field stretches away from the sun?

• magnetosphere

• magnetobelt

• magnetoline

• magnetotail