I WILL GIVE BRAINLIEST!! Using what you know about the words "decompose," "descent," and "deport," the prefix "de" means

to go forward
to build or form
to be empty
to do the opposite of

To do the opposite of.

Explanation:

Without the prefix of "decompose", we are left with just "compose". This word in art means to write or create, and can also mean to constitute or make up a whole. Decompose means the opposite of this, as it means to break down and decay, therefore we can infer that "de" means to do the opposite of.

im not to sure