1.) The study of life at the chemical
level, in particular
the chemistry of
proteins,
carbohydrates, and
nucleic acids.

1.Nucleic acids: Stores and transfers info.

2.Carbohydrates; Store energy, provide fuel, and build structure in body, main source of energy, structure of plant cell wall.

3.Lipid: Insulator and stores fat and energy.

4.Protein: Provide structural support,transport, enzymes, movement, defense.

compost can be added to topsoil as a:

pesticide

thinking it would be d not too sure but i think it's right