The purpose of Daylight Savings Time is to

A) allow an extra hour per day for crops to grow during the growing season, at the expense of an hour per day when crops are not in the ground.
B) provide an extra hour of daylight in the evening hours, to conserve energy, at the expense of an hour of daylight in the morning hours.
C) adjust for variations in the speed of Earth's orbit around the Sun at different times of the year.
D) allow the Greenwich Mean Time system to represent the actual position of the Sun in the sky more accurately.


B) provide an extra hour of daylight in the evening hours, to conserve energy, at the expense of an hour of daylight in the morning hours.

Environmental & Atmospheric Sciences

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Using the data in this table, determine the age of the dike.



A) 500
B) 1,000
C) 40,000,000
D) 500,000,000
E) 1,000,000,000

Environmental & Atmospheric Sciences

Who was responsible for spreading the idea of the nation-state across Europe in the early nineteenth century?

A) King Louis XVII B) Napoleon Bonaparte C) Pope Pius VII D) Admiral Horatio Nelson

Environmental & Atmospheric Sciences

The theory of "Social Darwinism" was created by

A) Charles Darwin. B) David Hume. C) Herbert Spencer. D) John Locke.

Environmental & Atmospheric Sciences

This was not a prominent gas in the Earth's early atmosphere

A) methane. B) ammonia. C) hydrogen. D) helium. E) oxygen.

Environmental & Atmospheric Sciences