What layer of the atmosphere is known for having temperatures as low as -90•c

In a repredentive democracy: a.) people come together in large meetings to vote on public policy b.) the people govern themselves c.) political power is held by a small group of people d.) people elect officials to run the government for them

Suppose you had to resolve the problems believed to be caused by distance decay in russia. what would you suggest?

Which topic would a meteorologist most likely research? -meteors in space -marine ecosystems -atmospheric conditions -the runoff of stream systems