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On a calm, cold day, the sensible temperature is often ____ than the thermometer reading.


A) lower
B) higher
C) about the same
D) much lower

E) None of the above
F) B) and C)

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Instructions: Choose one answer from each pair of selections. On a calm, cold day the temperature we perceive is often HIGHER | LOWER than the thermometer reading.

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The diurnal range of temperature is greatest ____


A) 100 feet above the ground
B) 2 feet above the ground
C) 100 cm below ground
D) 500 feet above the ground

E) All of the above
F) B) and D)

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How do wind machines protect crops from a damaging frost?

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Wind machines protect crops fr...

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The largest annual range of temperatures are found at ____.


A) polar latitudes over land
B) polar latitudes over water
C) middle latitudes near large bodies of water
D) the equator

E) A) and B)
F) A) and C)

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How many cooling degree-days would there be for a day with a maximum temperature of 95°F and a minimum temperature of 65°F? (Assume a base temperature of 65°F)


A) 30
B) 20
C) 15
D) 0

E) A) and B)
F) B) and D)

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Instructions: Choose one answer from each pair of selections. In windy weather, thermals and turbulent eddies typically INCREASE | DECREASE daytime temperature differences between the ground and the air a few feet above the ground.

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Instructions: Choose one answer from each pair of selections. In a radiation inversion, is the air next to the ground COLDER or WARMER than the air higher up?

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In clear weather, the air next to the ground is usually ____ than the air above it at night, and ____ than the air above it during the day.


A) cooler; warmer
B) colder; colder
C) warmer; colder
D) warmer; warmer

E) A) and B)
F) None of the above

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Why aren't any of the world's record low temperatures observed over the ocean?

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Air over middle continental areas are mu...

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Nighttime radiation inversions occur on most ____.


A) clear, windy nights
B) rainy, windy nights
C) clear, calm nights
D) rainy, calm nights

E) All of the above
F) A) and B)

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An instrument that measures temperature and records it on a piece of record paper is called a ____.


A) minimum thermometer
B) thermistor
C) thermograph
D) maximum thermometer

E) A) and B)
F) None of the above

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Cold and cloudy nights are warmer than cold and clear nights (other factors being equal) because ____.


A) of strong radiation inversions
B) clouds reflect sunlight
C) of thermal belts
D) clouds absorb outgoing infrared energy and radiate it back to the surface

E) C) and D)
F) All of the above

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Suppose peas are planted in Indiana on May 1. If the peas need 1200 growing degree-days before they can be picked, and if the mean temperature for each day during May and June is 70°F, in about how many days will the peas be ready to pick? (Assume a base temperature of 40°F.)


A) 11
B) 30
C) 40
D) 70

E) C) and D)
F) None of the above

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Instructions: Choose one answer from each pair of selections. Would you expect to observe the smallest variation in temperature from day to day in the middle of a(n) OCEAN or LAND MASS?

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Instructions: Choose one answer from each pair of selections. Temperatures near water have a LARGER | SMALLER diurnal variability as compared to inland locations.

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How does humidity affect the diurnal temperature range?

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The diurnal temperature range is the dif...

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What are contour lines on a map that connect points with equal temperatures called?

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An astronaut walking in space at an altitude of 300 km and properly shielded from the sun would feel cold when the temperature is 500°C as a result of ____.


A) high air density
B) low air density
C) high air pressure
D) temperature inversion

E) A) and B)
F) A) and C)

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Why should air temperature measurements be made in the shade?

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It is impossible to measure air temperat...

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