How did domestic US policy hurt the economics of other countries? A) the US refused immigrants entry which meant that more impoverished people feminized in their home countries
B) when they refused to join the League of Nations, the US hurt other economies by cutting the amount of money the league would have
C) the US government took all their money out of other countries’ banks when World War I began
D) high taxes on goods from foreign countries made international trading harder

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.

a. poison gas was sprayed over battlefields by airplanes to weaken enemy positions before major attacks.