A: Styrofoam does not decompose in the environment under normal circumstances. Much like plastic, Styrofoam is made from a polystyrene-based petroleum product that is not biodegradable. Plastic takes hundreds of years to decompose, and Styrofoam takes much longer because it is a stronger form of plastic.
View Full Document. Zone of wastage: Is the area in which melting or ablation rates exceed those of snowfall (Fig.2). â¢ The snow line: Is the boundary between the zone of accumulation and that of wastage, and could therefore be defined as the highest level at which winter snow melts in the summer. VI- Internal structure of a glacier.
Split and merge into it. Answered by The Community. Making the world better, one answer at a time. The shadow zone is caused by S-waves as they travel through Earth. S-waves, however, cannot travel through the outer core of the Earth, which is molten.This is because S-waves lose velocity when travelling through a liquid.nswered by The Community. Making the world better, one answer at a time. The shadow zone is caused by S-waves as they travel through Earth. S-waves, however, cannot travel through the outer core of the Earth, which is molten.