.................... thats Hard...!!!?
Answer:
b)a pattern
Explanation:
Because he saw the pattern of movement of Jupiter repeatedly
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)
