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Ozone Layer and UV Radiation Effects

Ozone Layer and UV Radiation Effects

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video explains ozone's role in absorbing harmful UV light and its dual nature as both beneficial and toxic. It details the types of UV light (UVA, UVB, UVC, and vacuum UV) and their effects. The ozone layer's importance in filtering UV radiation is highlighted, along with threats from CFCs. The video also covers UV radiation's impact on cells and the protective role of melanin. Finally, it discusses tropospheric ozone, its formation from pollutants, and its health risks.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for ozone?

O2

O3

CO2

H2O

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of UV light is closest to visible light?

Vacuum UV

UVA

UVB

UVC

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which UV type is most harmful to DNA?

UVB

UVC

Infrared

UVA

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What percentage of the atmosphere is nitrogen, which absorbs vacuum UV?

50%

60%

70%

80%

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of the ozone layer?

To provide oxygen for breathing

To absorb harmful UV radiation

To reflect sunlight

To trap greenhouse gases

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which chemical is known to deplete the ozone layer?

Nitrogen

Chlorofluorocarbons

Methane

Carbon dioxide

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does UV radiation primarily damage cells?

By heating them

By creating free radicals

By freezing them

By dehydrating them

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