The answer is "the ice-caps" from the north and south pole.
One major source of conflict during civil rights movement of 1940 and 1950 is letter B. race r iots in new york and detroit. Detroit, New York and Texas ri ots are the major ri ots on that time. It is a riot that has a conflict of races and color discrimination. In the said ri ots, there is a conflict between the white and black because of issues of r ape and stealing properties.
The second one I think .............
Answer:
the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
