A triangle shaped area of land made by soil deposited by a river is called a delta
It would be good to know the context of your question. When you say "based on the passage," perhaps you could attach a screen shot of the passage you're looking at.
Nevertheless, even without such context, I would lean toward saying the answer is that "the Soviet government would do whatever it could to stay in power." I'm guessing you're talking about events as the Soviet Union was nearing its dissolution and Boris Yeltsin was leading Russia in a move to declare its own sovereignty separate from the USSR. The Soviet leadership did not give in to that movement willingly.
The answer would be B-the real reason reason Rome fell
Overpopulation in China began after World War II in 1949, when Chinese families were encouraged to have as many children as possible in hopes of bringing more money to the country, building a better army, and producing more food.
Respect and relationships. This is shown as he has a distinct implication towards respect for elders and how family relationships are portrayed.
Filial Piety means respect for your elders that is shown by the children or those younger than an elder.
Hope this helps!