# Midterm Review: 1 Of 10: Question Preview (ID: 12468)

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Which list correctly matches each instrument with the weather variable it measures?
a) barometer - relative humidity: anemometer - cloud cover: precipitation gauge - probability of precip
b) barometer - air pressure: anemometer - wind speed: psychrometer - relative humidity
c) wind vane - wind speed: thermometer - temperature: precipitation gauge - relative humidity
d) wind vane - wind direction: thermometer - dewpoint: psychrometer -air pressure

Students wish to study the effect of elevation above sea level on air temperature and air pressure. Which instruments should they use to collect their data?
a) thermometer and psychrometer
b) anemometer and psychrometer
c) anemometer and barometer
d) thermometer and barometer

Air pressure is usually highest when the air is
a) cold and humid
b) warm and humid
c) cold and dry
d) warm and dry

Earth\'s surface winds generally blow from regions of higher
a) air pressure toward regions of lower air pressure
b) elevations toward regions of lower elevations
c) air temperature toward regions of lower air temperature
d) latitudes toward regions of lower latitudes

What is the relative humidity when the dry-bulb temperature is 16 degrees C and the wet-bulb temperature is 14 degrees C?
a) 14%
b) 80%
c) 13%
d) 90%

When molecules of water evaporate into the air and replace the heavier molecules of oxygen and nitrogen, the density of the air generally
a) decreases
b) not sure
c) remains the same
d) increases

What is the dewpoint when the dry-bulb temperature is 10 degrees C and the wet-bulb depression is 3 degrees C?
a) 65
b) 15
c) 13
d) 4

Which ocean current transports warm water away from Earth's equatorial region?
a) Guinea Current
b) Falkland Current
c) California Current
d) Brazil Current

Large oceans moderate the climatic temperatures of surrounding coastal land areas because the temperature of ocean water changes
a) rapidly, due to water's low specific heat
b) slowly, due to water's high specific heat
c) slowly, due to water's low specific heat
d) rapidly, due to water's high specific heat

Which atmospheric conditions are necessary for condensation?
a) unsaturated air and equal dewpoint and air temperatures
b) saturated air and dewpoint temperature much lower than air temperature
c) unsaturated air and dewpoint temperature much higher than air temperature
d) saturated air and equal dewpoint and air temperatures

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