The phrase 10 m per second squared describes the what

real, smaller and upside-down.   so the answer should be b.

co2reflects heat radiation back to earth buning coal and oil emits co2 globe warms

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.