Environmental Science
Industrial melanism is an example of

protective resemblance with the surrounding
darkening of skin due to industries
defensive adaptation of skin against UV radiations
drug resistance

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Environmental Science
During the winter solstice in the Northern Hemisphere:

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
The noon sun is overhead at 23.5o S latitude

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