Environmental Science Chapter 13 Section 2

Pick the letter of the term that best matches the description.

strong circulating winds over Antarctica

• a. polar vortex

• b. chlorofluorocarbons

• c. skin cancer

• d. ozone layer

• e. phytoplankton

Pick the letter of the term that best matches the description.

a possible consequence to humans from a thinning ozone layer

• a. polar vortex

• b. chlorofluorocarbons

• c. skin cancer

• d. ozone layer

• e. phytoplankton

Pick the letter of the term that best matches the description.

single-celled organisms that live near the ocean’s surface

• a. polar vortex

• b. chlorofluorocarbons

• c. skin cancer

• d. ozone layer

• e. phytoplankton

Pick the letter of the term that best matches the description.

a part of the stratosphere that absorbs most of the ultraviolet light from the sun

• a. polar vortex

• b. chlorofluorocarbons

• c. skin cancer

• d. ozone layer

• e. phytoplankton

Pick the letter of the term that best matches the description.

a class of human-made chemicals that may damage the ozone layer

• a. polar vortex

• b. chlorofluorocarbons

• c. skin cancer

• d. ozone layer

• e. phytoplankton

Scientists estimate that a single chlorine molecule in the CFC structure

can destroy as many as ___________ ozone molecules.

• a. 100

• b. 1,000

• c. 10,000

• d. 100,000

As the amount of ozone in the stratosphere decreases,

• a. more ultraviolet light is able to reach Earth’s surface.

• b. less solar energy is able to reach Earth’s surface.

• c. the amount of methane in the atmosphere increases.

• d. the amount of phytoplankton in the ocean increases.

Polar stratospheric clouds are high-altitude clouds made of

• a. ozone and CFCs.

• b. ozone and molecular chlorine.

• c. water and nitric acid.

• d. water and sulfuric acid.

Which of the following is not a damaging effect of ultraviolet light on the amphibian population?

• a. interference with photosynthesis

• b. death of eggs

• c. genetic mutations among survivors

• d. reduction of populations

High ultraviolet (UV) radiation levels at Earth’s surface can

• a. produce CFCs.

• b. damage DNA.

• c. thin the ozone layer.

• d. change weather patterns.