This is the distance above sea level.
What is altitude?
examples of this are runoff from factories, pesticides, oil spills, fertilizers
What is water pollution?
Earth's __________ is composed mostly of nitrogen and oxygen.
What is the atmosphere?
A river delta typically forms at the ________ of a river where it enters a standing body of water like an ocean or sea.
What is mouth?
This term describes the original point from which a river flows, often found high up in mountains or hills.
What is source?
This layer of the atmosphere absorbs most of the sun's UV (ultraviolet rays)
Stratosphere
_________________ is the trapping of heat by Earth's atmosphere allowing life to exist.
What is greenhouse effect?
What is the order of the layers of the atmosphere starting closest to Earth?
Troposphere, stratosphere, mesosphere, thermosphere, and exosphere
Famous for plunging waterfalls, cascading rapids, and a distinct lack of broad floodplains in uplifted topography, I am a __________.
What is Mature river?
This stage of a river is characterized by steep V-shaped valleys and rapid waterfalls: Young river.
What is true?
wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface
What is an upwelling
A __________ is a frozen river of ice.
What is a glacier?