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World Ozone Day

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

When is international ozone day celebrated?

a)

October 16

b)

September 16

c)

November 16

d)

October 21

2.

Which plant produce ozone at the time photosynthesis ?

a)

Lemon

b)

Tulsi (Basil)

c)

Neem

d)

Aloe vera

3.

In which sphere Ozone layer depletion is found?

a)

Ionosphere

b)

Stratosphere

c)

Lithosphere

d)

None of these

4.

When was the first ozone hole discovered?

a)

1964

b)

1974

c)

1984

d)

1994

5.

The depletion in the Ozone layer is caused by?

a)

Carbon dioxide

b)

Nitrous oxide

c)

Methane

d)

Chlorofluorocarbon

6.

Which of the following represents ozone gas molecule?

a)

O1

b)

O2

c)

O3

d)

O4

7.

Who discovered the ozone layer?

a)

Henri Buisson & Charles Fabry

b)

Carl Sagan & Charles Fabry

c)

G.M.B Dobson

d)

Carl Sagan &G.M.B Dobson

8.

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

a)

Photometer

b)

Spectrometer

c)

Spectrophotometer

d)

Spectro-ozonometer

9.

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

a)

10 - 20 km

b)

20 - 40 km

c)

40 - 55 km

d)

55 - 70 km

10.

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 of the mentioned