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What name is given to the lowest layer of the atmosphere?

The Troposphere

To be classed as a category one hurricane, what is the minimum speed the winds of a storm must be able to sustain for at least 1 minute in MPH?

74 MPH

Which is hotter - the surface of the sun, or a bolt of lightning?

Lightning

about 5 times hotter than the surface of the sun, although vastly less than the center of the sun which is about 27 million degrees fahrenheit

The Beaufort Wind Force Scale ranges from zero up to which number, representing a hurricane?

12

Tags: Units,

What is measured with a hygrometer?

Humidity

What is an anemometer used to measure?

Wind speed

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