Read the passage from ronald reagan's "tear down this wall" speech. perhaps this gets to the root of the matter, to the most fundamental distinction of all between east and west. the totalitarian world produces backwardness because it does such violence to the spirit, thwarting the human impulse to create, to enjoy, to worship. the totalitarian world finds even symbols of love and of worship an affront. . as i looked out a moment ago from the reichstag, that embodiment of german unity, i noticed words crudely spray-painted upon the wall, perhaps by a young berliner, "this wall will fall. beliefs become reality." yes, across europe, this wall will fall. for it cannot withstand faith; it cannot withstand truth. the wall cannot withstand freedom. what is reagan’s main purpose in this passage? to threaten the soviet union to urge an end to communism to explain why he is visiting berlin to applaud small acts of resistance

Reagan's main purpose is " to applaud small acts of resistance." When Reagan says : "...this gets to the root of the matter..", this refers to the fact   he noticed  some words on the Berlin Wall. The words were " This wall will fall. Beliefs become reality."  Reagan thought they had been spray- painted by a young Berliner. He uses this small act of resistance against the Berlin Wall  to justify his view of totalitarian governments.

He is not threatening the Soviet Union. Reagan wants to justify  the end  to communism in Europe.

He is not explicitly urging an end to communism is this passage.

He  is not giving an explanation why he is in Berlin. Reagan's words are emotional. They are not factual.

just took the test again and the answer is B

according to archimedes principle, volume of water displaced = volume of water.

hence volume of rock is = 1.65l or 1650 cm^3

explanation:

adding more details about the struggle rainsford experiences as he swims to the shore