Units 9-12 - Acid Deposition

Question 1

Define buffering

Answer 1

A chemical reaction to minimize a change to the hydronium-ion (acid) concentration in soil or water

Question 2

Define buffering capacity

Answer 2

The relative ability of a substance to resist change to its pH despite the addition of an acid or base

Question 3

Define leaching

Answer 3

Extracting a substance from a solid by dissolving it in a liquid; the removal of metal ions from topsoil that allows for their movement into lower levels of soil or into soil water

Question 4

Define biomagnification

Answer 4

The tendency of a pollutant to appear at higher concentrations at high levels in a food chain (ex. polar bear in chain has highest pollutant in a chain)

Question 5

Define disassociation

Answer 5

The separation of a chemical substance into its individual ions in a solution

Question 6

Define electrostatic attraction

Answer 6

A force that acts to pull oppositely charged objects towards each other

Question 7

Define anthropogenic

Answer 7

Derived from human activity