Q. The plane of contact of the troposphere and stratosphere is known as ________
✅ Correct Answer: (D)
Tropopause
Explanation:
The tropopause is the boundary layer or plane of contact between the troposphere (the lowest layer of the atmosphere) and the stratosphere (the layer above it).
- It acts as a cap limiting the mixing of air between these two layers.
- Its altitude varies but is typically around 8–15 km above the Earth's surface.
Why other options are incorrect:
- (A) Mesosphere – A higher atmospheric layer above the stratosphere.
- (B) Ionosphere – Part of the upper atmosphere, containing ionized particles, much higher up.
- (C) Stratopause – Boundary between the stratosphere and mesosphere.
Thus, the correct answer is (D) Tropopause.
Explanation by: Mr. Dubey
The tropopause is the boundary layer or plane of contact between the troposphere (the lowest layer of the atmosphere) and the stratosphere (the layer above it).
- It acts as a cap limiting the mixing of air between these two layers.
- Its altitude varies but is typically around 8–15 km above the Earth's surface.
Why other options are incorrect:
- (A) Mesosphere – A higher atmospheric layer above the stratosphere.
- (B) Ionosphere – Part of the upper atmosphere, containing ionized particles, much higher up.
- (C) Stratopause – Boundary between the stratosphere and mesosphere.
Thus, the correct answer is (D) Tropopause.