Which of the following processes would be an example of mixing and separating? 1.water decomposing to oxygen and hydrogen
2.removing salt from seawater
3.a bright copper statue turning green from weathering

What effect might melting sea ice have for people who live in coastal areas?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.