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ENVIRONMENT EDUCATION

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Which of the following action takes place in the formation of ozone?

a)

Action of daylight on phosphorous

b)

Action of daylight on hydrogen

c)

Action of daylight on nitrogen

d)

Action of daylight on oxygen

2.

Which of the following chemicals are responsible for the depletion of the stratospheric ozone layer?

a)

Propellents

b)

Refrigerant

c)

Foam blowing agent

d)

All

3.

When was the ozone hole discovered?

a)

1964

b)

1984

c)

1974

d)

1994

4.

The long UV-B radiations are important for vitamin D production of the skin.

a)

TRUE

b)

FALSE

5.

Which of the following devices can be used to measure ozone in the stratosphere from the ground?

a)

Spectrometer

b)

Spectro-ozonometer

c)

Spectrophotometer

d)

Photometer

6.

Nitrogen also helps in preventing UV rays from reaching the Earth.

a)

TRUE

b)

FALSE

7.

Which of the following UV radiations is responsible for causing sun burns and skin cancer?

a)

UV-A

b)

UV-B

c)

UV-C

d)

All

8.

. In which season is the ozone found at its maximum level in the northern hemisphere?

a)

WINTER

b)

SUMMER

c)

AUTUMN

d)

SPRING

9.

The ozone hole is a phenomenon that has occurred in:

a)

Arctic region

b)

Northern temperate region

c)

Southern temperate region

d)

NONE

10.

Between what altitudes, is the ozone layer found in highest concentrations?

a)

10-20 kM

b)

20-40 KM

c)

40-55KM

d)

55-70KM