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
All of these
At middle latitudes in the Northern Hemisphere, this marks the longest night of the year

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Environmental Science
What is meant by ex-situ conservation?

Conservation of a species by protecting its habitat along with all other species living there
Conservation of plants
Conservation of forest eco system
Conservation of a species outside its natural habitat

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