Environmental Science
"Ozone Hole" is a _____________

Destruction of ozone layer
Hole in the hydrosphere
Hole in the troposphere
Hole in the atmosphere

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

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