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Correct answer: Rotating cloud
Why? The nebular hypothesis suggests that the bodies of our solar system evolved from an enormous rotating cloud called the solar nebula.
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D.the strait of Gibraltar
Mass extinctions occur for many reasons. Changes in the environment might make it impossible for the local life to survive, diesease or drought might strike, or there might be a natural disaster. These extinctions make good divisions in geologic time because they are easy to locate over a wide area and mark a definitive change in the Earth's systems.
Answer:
Lightening comes first, and thunder a few short seconds after.
