SSC MTS 2026 PYQ — Question 44

SSC MTS - 5 Feb 2026 - Shift 3 • General Awareness • Q44

Ionosphere is a part of _____.

Show answer & explanation

Correct answer: C

Explanation

Correct Answer: Option 3 (Thermosphere)

Explanation:
The ionosphere is a layer of the Earth's atmosphere that is part of the thermosphere. This layer is ionized by the Sun's ultraviolet rays, allowing the reflection of radio waves and enabling communication systems to function.

Additional Facts
Altitude: This layer extends from approximately 80 km to 400 km altitude.
Radio Communication: Long-distance radio communication on Earth is possible due to the presence of the ionosphere.
Other Layers: The troposphere is the lowest layer where weather-related phenomena occur, and the ozone layer is found in the stratosphere.

Possible Questions for the Upcoming Exam
In which layer of the atmosphere do all weather-related changes occur?

(Answer: Troposphere)
In which layer of the atmosphere is the ozone layer located?

(Answer: Stratosphere)
From which layer of the atmosphere do radio waves reflect back to Earth?
(Answer: Ionosphere)