What happens to air pressure as altitude increases? (a) It stays the same) (b) it decreases) (c) it increases)

air pressure drops

Explanation: As altitude rises the air pressure drops.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme