There are four groups of macromolecules. Carbohydrate, Protein, Nucleic acid, and Lipids. Each macromolecule is essential for the growth and formation of cells. Carbohydrates are used for energy and help build the structure of the cell wall. Proteins help build and regulate muscle and tissue. Nucleic acid transfers
and stores information. Lastly Lipids insulate your body and help produce hormones.
So this my friend is a Contact Force. Anything that involves pushing, pulling, or creating friction is a contact force. So you will say it’s a contact force. Please Mark me brainliest
An increase in insulating atmospheric gasses (e.g. carbon dioxide)