Why is the presence of ozone in the stratosphere protective for life on Earth?
Answer and explanation
Correct answer: It reduces the intensity of ultraviolet rays
Stratospheric ozone absorbs a substantial part of the Sun’s biologically harmful ultraviolet radiation, especially much of the UV-B and nearly all UV-C that would otherwise reach the surface. Lower ultraviolet exposure helps protect skin, eyes, plants, and aquatic organisms from cellular and genetic damage. Therefore option A is correct. Ozone does not remove sea salts, stop all clouds, or increase the percentage of nitrogen in air.
Frequently asked questions
What is the correct answer to this question?
It reduces the intensity of ultraviolet rays
Why is this the correct answer?
Stratospheric ozone absorbs a substantial part of the Sun’s biologically harmful ultraviolet radiation, especially much of the UV-B and nearly all UV-C that would otherwise reach the surface. Lower ultraviolet exposure helps protect skin, eyes, plants, and aquatic organisms from cellular and genetic damage. Therefore option A is correct. Ozone does not remove sea salts, stop all clouds, or increase the percentage of nitrogen in air.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
