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Exam 3: Seasonal and Daily Temperatures

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Question 1

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The wind-chill factor

A) relates body heat loss with wind to an equivalent temperature with no wind.
B) indicates the temperature at which water freezes on exposed skin.
C) ​takes into account humidity and air temperature in expressing the current air temperature.
D) ​tells farmers when to protect crops from a freeze.
E) ​determines how low the air temperature will be on any given day.

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Question 2

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Heating degree days are determined by subtracting the ____ temperature for the ____ from 65 degrees Fahrenheit.

A) coldest;year
B) mean;year
C) ​warmest;week
D) ​coldest;day
E) ​mean;day

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Question 3

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Explain the heating degree day application.

The greatest variation in daily temperature usually occurs

On a warm summer day,one city experienced a daily range of 22°C (40°F),while another had a daily range of 10°C (18°F).One of these cities is located in New Jersey and the other in New Mexico.The highest daily range probably occurred in ____________________ where relatively dry summer air allows for large daily temperature ranges.The lowest daily range more than likely occurred in ____________________ where the humid summer air keeps the daily temperature range small.

On a clear,calm night,the ground and air above cool mainly by which process?

The term cooling degree day is used during ____ weather.

If the tilt of Earth's axis suddenly increased to 45o,average winter temperatures in the middle latitudes of the Northern Hemisphere would ____________________.

If it is winter and January in New York City,the season in Sydney,Australia is ____________________.

Which latitude below would experience the fewest hours of daylight on December 22nd?

The daily minimum temperature is usually observed

The combination of heating and cooling degree days gives a practical indication of the energy requirements over the year.

In Pennsylvania and New York,wine grapes are planted on the side of ____________________ rather than in valleys.

Farmers use an index called ____ as a guide to planting and for determining the approximate dates when a crop will be ready for harvesting.

An important reason for the large daily temperature range over deserts is

The ____________________ degree-day is based on the assumption that people will begin to use their furnaces when the mean daily temperature drops below 65 degrees Fahrenheit.

The north-facing side of a hill in a mountainous region in the U.S.tends to be a better location for a ski run than the south-facing side.

The winter solstice marks the shortest night of the year in the Northern Hemisphere.

List some of the measures farmers use to protect their crops against the cold.Explain the physical principle behind each method.

During the Northern Hemisphere's summer,the daylight hours in northern latitudes are ____________________ than in middle latitudes.