I believe it’s answer 2 :)
Russia's Communist government tried to improve food production by "<span>b. taking over ownership of farms," since this was part of their centrally planned economy (which ultimately failed).</span>
Answer:
Inventions like the airplane and machine gun
Explanation:
World War I was so deadly because all of the new weapons that were invented. New technology that was being invented such as machine guns and mustard gas made war deadlier than every war before.
Answer: Chinese immigrants were particularly instrumental in building railroads in the American west, and as Chinese laborers grew successful in the United States
Explanation: