Q5
1 markMCQSection A

Select the incorrect statement from the following:

Life Processes
Life Processes

Options

(A)Ozone is a molecule formed by three atoms of oxygen.
(B)Ozone shields earth's surface from harmful infrared radiations.
(C)CFC's are linked to decline of O3O_3 layer in our atmosphere.
(D)Ozone at higher levels is a product of UV radiations acting on oxygen molecule.
Official Answer

Ozone shields earth's surface from harmful ultraviolet (UV) radiations, not infrared radiations.

ozoneinfrared radiationsUV radiations

Marking Scheme

  • 11 mark

Hint

Ozone's role in the atmosphere

Quick Oral Answer

Ozone is a molecule formed by three atoms of oxygen and it shields the earth's surface from harmful ultraviolet (UV) radiations.

Analysis & Explanation

The statement in option B is incorrect because ozone actually shields the earth's surface from harmful ultraviolet (UV) radiations, not infrared radiations.

Common Mistakes

  1. 1confusing ozone's role with other atmospheric components

Interesting Facts

Ozone is a vital component of the stratosphere, protecting life on earth from UV radiation

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2026?

This question carries 1 mark in the CBSE Class 10 Science 2026 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Life Processes" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Life Processes" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2026 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2026 paper.