Something must have been moving along and either plowed the stuff to one side or carried it and deposited it along the side. What else but a glacier?
PS. I'd guess this is more the province of geologists, not geographers
Answer:
lithosphere, hydrosphere, atmosphere and biosphere
Explanation:
Overpopulation would be the greatest threat to our future. overpopulating the earth would mean more buildings being made, more factories being created and with more factories there becomes more pollution, more poverty, etc
<span>B.
Lava, ash, and other materials from volcanic eruptions gradually build up over time. This is the correct answer. The volcanic molten material is ejected from fissures or initial cones and as the lava flows out and cools and as the pyroclastic materials solidify and tumble down the slopes, they build up the flanks of the volcanoes.</span>
