The mesosphere burns up most meteors and asteroids before they are able to reach the earth's surface.The mesosphere is the coldest atmospheric layer surrounding the earth. It becomes cold enough to freeze water vapor in its atmosphere into ice clouds.
Answer:
bcz they did not reach Europe until after the 15th century
Explanation:
Climate change,Deforestation,<span>Pollution</span>
Big Bang Theory, creation by deities (God, Buddha, etc) and Darwinism I would think.
