Is moss a decomposer?

Moss is a decomposer because it breaks down dead plants and animals

Yes. Moss IS a decompose because it breaks down dead plants and turns them into nutrients. It does not harm other plants while it goes through this process

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.