Earth's temperature remains fairly steady, which means that earth must return the same amount of energy to space that it receives from the sun. in what forms does earth return most of this energy to space?
a) visible light reflected by clouds
b) ultraviolet light reflected by the surface
c) visible light reflected by the surfa

a, b and c

Explanation:

Earth return most of this energy to space in following forms

visible light reflected by clouds

ultraviolet light reflected by the surface

visible light reflected by the surface and atmosphere as well. \

Above all options are correct . Moreover, Earth's Albedo is  30% , meaning it reflects back 30% of the total incident radiation on the Earth. And the rest of the solar energy is absorbed or trapped by the phenomenon called Greenhouse effect.

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.