Which of the following is the lowermost layer of the earth's atmosphere?

Question

Question

This question was previously asked in

RRB NTPC CBT 2 (Level-2) Official Paper (Held On: 16 June 2022 Shift 2)

Answer 1

The correct answer is Troposphere.

Key Points

Troposphere

The lowest layer of our atmosphere is called the troposphere.
It begins at ground level and rises to a height of approximately 10 kilometers (6.2 miles or 33,000 feet) above sea level.
Nearly all weather occurs in the troposphere, where we people reside.
Because the troposphere contains 99 percent of the atmosphere's water vapor, this is where the majority of clouds form.

Additional Information

Stratosphere

From the troposphere to roughly 50 km (31 miles) above the surface, the stratosphere is present.
The stratosphere contains the protective ozone layer.
High-intensity ultraviolet (UV) light from the Sun is absorbed by ozone molecules in this layer, which turns the UV energy into heat.

Mesosphere

The mesosphere is located above the stratosphere.
It rises to an altitude of roughly 85 km (53 miles) above our planet.
The mesosphere is where most meteors burn up. As you ascend through the mesosphere, temperatures drop once more, in contrast to the stratosphere.

Thermosphere

The thermosphere refers to the layer of extremely rare air above the mesosphere.
The thermosphere heats up to hundreds or even thousands of degrees as a result of the Sun's high-energy X-rays and UV radiation being absorbed there.