Answer:
Deep sleep reduces the likelihood someone will have a nightmare.
Explanation:
In simple words, all other points except the last statement are scientifically proves facts of what are some major requirements to get a proper sleep. In history, the cavemen had issues with hunting in darkness so they decided to wait until the day which ultimately led to long sleeps for them.
Also, sleep is essential for the body and brain as it heals the damaged neurons and also relaxes the muscles all over the body.
<span>They didn't speak the language. There were cultural differences. They were discriminated against by the native born Americans. Hard to find a job and a place to live.</span>
Even though the human race is essentially the same as we are all humans, different people have different biological races. There are many types of human races and each race depends on the backgrounds of the parents, where they live in the world and their ethnicity. So, <span>"biological race" is an evolutionarily valuable way to describe human variation. </span>
Answer:
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