Definition:
U-shaped valleys form through glacial erosion. Glaciation develops in established v-shaped river valleys where the ice erodes the surrounding rocks to create a “U” shaped valley with a flat bottom and steep sides. Glacier movement is driven by gravity. When the glacier melts, the landscape is transformed and the U-shaped valleys are clearly visible.
The dead animal carcass's and the human ashes and body/bones cause the river to be polluted. CAUSES BAD POLLUTION
C) Unionists supported secession as a last resort and only if it was done with the full support of all of the southern states, while Secessionists opposed secession altogether.
Plants and animals have to be able to cope with the environment. (An animal that is good at keeping in heat would not do well in a desert.)
