Environmental Science
During the winter solstice in the Northern Hemisphere:

The noon sun is overhead at 23.5o S latitude
Astronomical winter begins in the Northern Hemisphere
At middle latitudes in the Northern Hemisphere, this marks the longest night of the year
All of these

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Environmental Science
Which of the following statements is not correct?

The relative humidity is a measure of the air's actual water vapor content.
A change in the air temperature can change the relative humidity.
The length of human hair changes as the relative humidity changes.
During the winter, low relative humidity can irritate the mucus membranes in the nose and throat.

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Environmental Science
The order of basic processes involved in succession is

Nudation->stabilization-> competition and co action->Invasion>reaction
Invasion-> Nudation->competition and co action->Reaction>stabilization
Invasion->stabilization-> competition and co action->Reaction>nudation
Nudation->Invasion-> competition and co action->reaction>stabilization

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