Answer:
they should know things like if their hearing will be damaged or the side effects of wearing them constantly so they know the dangers before using them
The answer is “B” because I just answered it
The answer is convection<span>. The convection force is originated inside the fluid bodies (inside the Earth, in this case) and is due to the difference of densities generated by the difference in temperatures. This is the same force that affects the current of waters and the winds. The mechanism proposed is that the very hot rocks deep in the Earth have a lower density than upper rocks, so those hot rocks (not liquid due to the high pressures) tend to move upward leaving a void. The void will be filled by the next rocks close to the void and that generate a circular pattern that press the rocks to move.</span>
27) mechanical weathering
28) overgrowth of algae that produce toxins
29) Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice. There are two types of weathering:mechanical and chemical. Mechanical weathering is the disintegration of rock into smaller and smaller fragments.
30) I'M NOT SURE
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