Answer:
The invention that made food production more efficient was the plow.
The best answer is D) <span>Conquered most of the civilized world between India and Greece
Although Alexander the Great's empire did help to further develop international trade networks, his most notable achievement is the expansion of the Macedonian Empire to cover an enormous area between Greece and India.
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You would probably find is silicon
US must be able to protect their borders. also, because of American communism, the freedom of speech, assembly and press were very limited. The US government also put up the loyalty program so as to dismiss the employees that were suspected to be communists. The FBI headed the spreading of information that brought about the damage to individual members of the Congress. This was done to influence the opinion of the public regarding the threats of the communists.
