I think the answer is A good luck
Glaciated valleys are formed when a glacier travels across and down a slope, carving the valley by the action of scouring. When the ice recedes or thaws, the valley remains, often littered with small boulders that were transported within the ice, called glacial till or glacial erratic.
The best answer to the question above would be letter D. The inhabitants near Lake Baikal in Russia had protested about its pollution and forced some of the worst offenders to close. This is because they are afraid that the Lake might be a threat to their lives because it affects their lives directly when it is not properly conserved.
C is the answer. Yep. The triangle has perpendicular and the trapezoid has parallel
