The main reason is that there is no atmosphere. This means that there is no weather and no weather means that there is no wind or rain. Wind and rain are main components of erosion and because there is no erosion, craters can stay preserved for a very long time.
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Answer:
It's a new environment.
Explanation:
People need to adapt to their surroundings if they are introduced to something new.
Answer:
Changes that cannot be reversed are called irreversible changes
Example: if you cook an egg or if something goes bad. these changes can not be reversed.
Answer:
yes, it could be something that's old or something rats cant eat/drink
Explanation:
B) They should test their hypothesis before coming to that conclusion.