Will upvote! a chemical reaction in which one element replaces another element in a compound can be categorized as a
combustion reaction.
decomposition reaction.
single displacement reaction.
double displacement reaction.

single displacement reaction.

Explanation:

Displacement reactions, also called substitution or simple exchange reactions, are those that occur when a single substance (formed by a single element) reacts with a compound substance, "displacing" the latter into a new simple substance. In other words, a chemical reaction in which one element replaces another element in a compound can be categorized as a single displacement reaction.

petroleum? coal maybe?

i believe that it is a exoplanet