We need ways to get rid of garbage and incineration is certainly one way to do that. But you cannot decide whether it is appropriate or inappropriate without comparing its benefits and liabilities. Find articles that deal with either or both sides of this issue. At this point, you should return to the Road Map. Now, food and wood are not the things that are hydrocarbons.
Many industrial chemicals consists of chains and rings of carbon and hydrogen atoms.
For example, the pesticide DDT is a hydrocarbon. I've underlined the letters DDT, which provide the common name for this pesticide. Normally, these chains and rings have hydrogen attached at the edges. Those five chlorine atoms convert what would normally be a harmless hydrocarbon into a poison. I use DDT as an example because it is a well-known pesticide.