What is the height of the troposphere near the poles and the equator, respectively?

Correct option is B

The correct answer is (B) 8 km and 18 km.

The troposphere is the lowest layer of Earth's atmosphere, where most weather phenomena occur, and it varies in height depending on location:

Near the poles, the height of the troposphere is approximately 8 km. The colder temperatures at the poles cause the troposphere to be thinner.

Near the equator, the height of the troposphere is approximately 18 km. Due to the warmer temperatures and rising air at the equator, the troposphere is thicker in this region.

The variation in the height of the troposphere is due to the differential heating of the Earth's surface. Warmer regions, like the equator, have more convection, causing the troposphere to extend higher, whereas colder regions, like the poles, have less convection, leading to a thinner troposphere.

Information Booster:

● The troposphere is the layer where almost all clouds and weather patterns are found.
● The temperature in the troposphere generally decreases with altitude, leading to cooler temperatures at higher elevations.
● The tropopause is the boundary between the troposphere and the next layer, the stratosphere. The height of the tropopause varies with latitude.
● At the equator, due to intense solar heating, the air rises and causes the troposphere to expand.
● Polar regions receive less sunlight, so the air remains cooler and the troposphere stays lower.