<span> It has been in operation for only 18 months between April 1860 and October 1861, the Pony Express nevertheless has become synonymous with the Old West. Hope this helps
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The Senate makes the treaties
<span>Having a pessimistic attitude shows having
low levels of SEROTONIN. Being pessimistic shows that a person always thinks of
the worst or always thinking negative. Some study states that low levels of
serotonin will give a person a tendency to be depressed and to feel down.</span>
<span> D. tundraright arrowtaigaright arrowtemperate forestright arrowrain forest</span>
Hello there.
A prediction about a cause and effect relationship between two or more variables is a _____
Answer: It is a casual hypothesis.
Hope This Helps You!
Good Luck Studying ^-^