16.1 Assessment

What is the primary difference between weather and climate?

• Weather is long-term while climate is short-term
• Weather is what's happening now while climate is the average over time
• Weather affects small areas while climate affects large regions
• Weather is caused by the sun while climate is caused by the Earth's rotation

What happens when relative humidity exceeds 100%?

• The air becomes supersaturated
• It starts to rain
• The temperature increases
• Water vapor becomes invisible

Which factor does NOT directly influence a location's weather?

• Air temperature
• Wind speed
• Cloud cover
• Ocean currents

What is the dew point?

• The temperature at which dew forms on grass
• The temperature at which air becomes saturated with water vapor
• The point at which clouds start to form
• The lowest possible humidity in the air

How do clouds affect the daily temperature range?

• They increase the range
• They decrease the range
• They have no effect on the range
• They reverse the normal temperature pattern

What is necessary for water vapor to condense and form a cloud?

• High air pressure
• A nucleus like dust or salt
• Strong winds
• Absolute humidity of 100%

Which type of cloud is most likely to produce steady, prolonged precipitation?

• Cirrus
• Cumulus
• Nimbostratus
• Altocumulus

What characteristic distinguishes vertical clouds from other cloud types?

• They form at night
• They grow upward instead of spreading horizontally
• They are always made of ice crystals
• They produce the most rainfall

Which type of fog forms when warm, moist air moves over a cold surface?

• Radiation fog
• Advection fog
• Steam fog
• Upslope fog

What is the primary cause of tule fog?

• Rapid evaporation from lakes
• Night-time cooling under clear skies
• Warm air rising over mountains
• Cold air sinking into valleys