Environmental Science
In the northern hemisphere, the number of hours of daylight begin to shorten after the

Autumn equinox
Winter solstice
Spring equinox
Summer solstice

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Environmental Science
Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35o F. The most likely reason for this apparent discrepancy is that:

The thermometer was in error
The thermometer was read incorrectly
The thermometer was read before the minimum temperature was reached for that day
The newspaper reported the wrong temperature
Temperature readings are taken in instrument shelters more than 5 feet above the ground

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