NCERT Class 9 Science-Natural Resources[Ozone] [NCERT Based General Studies (GS)]: Questions 1 - 3 of 3

Access detailed explanations (illustrated with images and videos) to 4883 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. 3 Year Validity- Access Unlimited Times on Unlimited Devices.

View Sample Explanation or View Features.

Rs. 750.00 -OR-

How to register? Already Subscribed?

Question 1

Question MCQ▾

Chemicals which harms the ozone layer are

Choices

Choice (4)Response

a.

Bromine Halocarbons

b.

Chlorofluorocarbons

c.

Nitrous oxide

d.

All a., b. and c. are correct

Edit

Question 2

Question MCQ▾

Ozone depletion effects

Choices

Choice (4)Response

a.

Human beings

b.

Crops, Planktons

c.

Marine food-web

d.

All a., b. and c. are correct

Edit

Question 3

Question MCQ▾

Why ozone is a life -saving gas?

Choices

Choice (4)Response

a.

Because it absorbs gamma rays of the sun

b.

Because it absorbs ultraviolet radiation of the sun

c.

Because it absorbs X-Rays of sun

d.

All a., b. and c. are correct

Edit