Answer:
it helps researchers sense things on earth. they are usually on aircraft or in a satellite.
Explanation:
it collects data from a different level detecting the energy from the earth. this energy comes naturally from the earth's surface. it even most commonly picks up reflected sun light (which is also a source of radiation)
Big Bang Theory, creation by deities (God, Buddha, etc) and Darwinism I would think.
GROUNDWATER is the largest source of freshwater on earth.
I think it refers to worldwide mutual dependence between nations/countries as we depend on each other for the key things like food etc. on a worldwide level.
