Answer:
there could be earthquakes which causes the land to break apart(weathering). or their could be a flood which carries away sediments( erosion) or their could be really windy days that picks up rocks and moves them (deposition)
Snow, white and reflective.
South America. Hope this helps! :D
Estuary: it generally happens where rivers flow into the ocean
Yukon territory it could be the interior plains as well
