No, aircraft don't dump waste at high elevations - or at all. They have holding tanks which contain waste until the ship is on the ground where ground crews can pump them down. (You can often see the service trucks that do this from the concourse of many airports.) It's SOP for the airlines. There have been incidents of some waste falling from altitude onto populated areas, but they are rare. The airlines are good about keeping things tidy. Even though it costs a bit of money to do this kind of maintenance, it is worth it to avoid complaints or law suits from citizens who get "bombed" with waste. It is also against regulations to dump waste, or even throw "stuff" out of an aircraft. The FAA could levy fines that would make the cost of waste management on an aircraft look like pocket change.
It is called fall line.
weathering occurs faster at high elevations because
When flying at hight altitudes (+12,000FT) planes pressurize the cabin so passengers can stay conscious without wearing oxygen masks.
Timer line
Because gravity gives objects at high elevations the potential to fall much further.
Altitude acclimatization typically lasts for about 1-3 weeks for individuals adjusting to high elevations.
Low air pressure.
the water is getting to high elevations
because its hard to breath
According to the NPS, "Daytime temperatures are often in the 70s (25C) and occasionally in the 80s (30C) in lower elevations. Nights are usually cool and temperatures may drop below freezing at higher elevations" The area is high in the Northern Rockies, and thus it never gets very hot there.
because they are not high points of elevations and divides are high points of elevation
At high elevations, the force of gravity becomes less.