Unit 3: Environmental Chemistry

The study of the environment is called:

• biology

• chemistry

• environmental science

• geology

True or False? Humans affect the environment but the environment does NOT affect us.

• True

• False

The practice of growing, breeding, and caring for plants and animals that are used for food, clothing, housing, etc.

• Farming

• Agriculture

• Horticulture

• Zoology

Pollutant that CAN be broken down

• biodegradable

• edible

• invisible

• non-biodegradable

The process by which toxins are concentrated as they move up the food chain is called?

• pollution

• biomagnification

• web magnification

• biomass stratification

Which of the following conclusions can be made from the graph?

• Vinegar is more basic than lye

• Ammonia is more acidic than apple juice

• Baking soda is more basic than human blood

• Tomato juice is more acidic than lemon juice

According to the graph, an increase in the concentration of road salt in pond water from zero to 0.10ppm results in a decrease in the number of

• Organism 1

• Organism 2

• Organism 1 and 3

• Organism 2 and 3

Which of the following roles is played by carbohydrates in human nutrition?

• Act as an energy source

• Assist enzyme function

• Storage form of unused chemical energy

• Structural component of cells in the body

Bromothymol blue will appear yellow when mixed with

• lemon juice

• baking soda

• drain cleaner

• distilled water

Which of the following describes what can happen to the oxygen concentration and the variety of organisms at the point in the river where the warm water is returned?

• Oxygen concentration will increase, variety of organisms will increase

• Oxygen concentration will increase, variety of organisms will dncrease

• Oxygen concentration will decrease, variety of organisms will decrease

• Oxygen concentration will decrease, variety of organisms will increase