THE ANSWER IS I.ASTEROIDS II.COMETS III. METEOROIDS IV. PLANETS PLZ MARK BRAINLISEST HOPE I HELPED THX
Answer:
there are literally millions - alkanes, alkenes, alkynes, alcohols, esters, carboxylic acids... to name but a few.
Explanation:
I think its A. it cant be C or D b/c we are measuring the distance between Earth and Saturn, not the speed.
Open system ( exchanges energy and matter with the surroundings)
Closed system ( exchanges only energy with the surroundings)
Isolated system ( does not exchange energy or matter)
Adiabatic system ( does not allow any heat to be transferred into or out of the system)