Answer:
the fact or process of a species, family, or other group of animals or plants becoming extinct.
Explanation:
extinct means the disappearance of something meaning it is no longer alive or reproducible
Check on google they will give you the answer and others descriptions
Answer:
8 electrons
Explanation:
This gives each hydrogen atom two electrons in its outer energy level, which is full. It also gives oxygen 8 electrons in its outer energy level, which is also full.
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Answer:
C. 0.50
Explanation:
Since 900 is 1/2 of 1,800, it happens half of the time so the probability is 0.5
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