All layers are incredibly important. If we didn't, we would die very quickly and life would be inhabitable. The radiation from the son would kill us. The heat from the sun would dry up water and kill crops leaving us with no food/water.
Create your own study aids.Make an outline from your notes of just the main ideas.Make a timeline of important dates or the order of events.Make flashcards for studying vocabulary or events and important dates.Make up your own quiz or test based on your notes and have a friend, parent or sibling test you.<span>
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Answer:
que estuda os astros são os astronomos
Explanation:
I think your answer is B.) The objects must be in direct contact with one another
