Environmental Science
The air temperature is 45o F, the wind is blowing at 30 MPH, and the wind chill temperature is 15o F. These conditions would be equivalent to:

A 30o F air temperature and 45 MPH winds
A 30o F air temperature and 15 MPH winds
A 15o F air temperature and 0 MPH winds
A 15o F air temperature and 30 MPH winds

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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:

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

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