An explosion eruption by a single volcano can affect

People surrounding that area because the volcanic ash makes it hard to breathe.

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

1 digestive system

2 stomach

3 bladder

4 carbon deoxide

5 tiger