Question

Ozone gas present in upper surface of atmosphere protects earth from which radiation coming from sun?

• A. Ultraviolet
• B. Gamma ray
• C. X-Ray
• D. Infrared

Hint:

The ozone layer specifically protects us from ultraviolet radiation, especially the harmful UV-B and UV-C rays.

Answer 1

The Correct Option is A

Step 1: Understanding Ozone Layer
The ozone layer is located in the upper part of the Earth's atmosphere. It plays a vital role in protecting life on Earth by absorbing and blocking most of the sun's harmful ultraviolet (UV) radiation. UV radiation is a major cause of skin cancer, cataracts, and other health issues.

Step 2: UV Radiation
Ultraviolet radiation is a type of electromagnetic radiation that has a shorter wavelength than visible light but longer than X-rays. UV radiation is harmful to life forms, and the ozone layer filters out the most dangerous types, especially UV-B and UV-C rays.

Step 3: Why the Other Options are Incorrect
- (B) Gamma ray: Gamma rays are high-energy electromagnetic radiation, but they are not significantly absorbed by the ozone layer. Other atmospheric layers and cosmic phenomena mainly interact with gamma rays.
- (C) X-Ray: X-rays also have a high energy but are not the primary type of radiation blocked by the ozone layer. They are absorbed by other atmospheric components.
- (D) Infrared: Infrared radiation is heat radiation and is not harmful like UV rays. The ozone layer does not play a significant role in absorbing infrared radiation.
Thus, the correct answer is option (A) Ultraviolet.