A Mixture of Wet and Dry Deposited Material from the Atmosphere

question 13

Multiple Choice

A mixture of wet and dry deposited material from the atmosphere causing higher than normal amounts of nitric and sulfuric acids is

• A) acid rain.
• B) smog.
• C) ozone impact.
• D) waste deposits.

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Definitions:

Diffusion

The movement of molecules from an area of higher concentration to an area of lower concentration, a fundamental process in biology and chemistry.

Negatively Charged

Having more electrons than protons, resulting in a net charge that is less than zero.

Protein Anions

Negatively charged proteins that play various roles in cellular functions, including maintaining cell structure and function.

Cell Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, controlling the passage of substances in and out.