The survival of the fittest is an idea promoted by Charles Darwin. The correct option among all the options given in the question is option "A".<span>Charles Darwin was
born on 12th of February in the year 1809 and died on 19th
April in the year 1882. Charles Robert Darwin was not only a geologist but was
also an English naturalist. He is remembered around the world for his work
concerning evolutionary theory. The famous book wrote by Darwin in support of
his theory was </span>“On
the Origin of Species” in
the year 1859.<span>
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Their invention was a catalyst for future air craft technology especially when it came to Wars. Production was booming the most during times of war.
Answer:
Dangers and Difficulties - Transcontinental Railroad
Many dangers came with the construction of the Transcontinental Railroad. In the east, tracks ran through Native American tribal territories. The Native Americans saw this as a threat to their existence and a violation of their treaties with the United States.
Explanation:
Answer: barter
Explanation:
In trade, barter (derived from baretor) is a system of exchange where participants in a transaction directly exchange goods or services for other goods or services without using a medium of exchange, such as money.
