Question

multiple choice question
which layer of the atmosphere is closest to earths surface and contains most of the mass of the atmosphere?

troposphere

thermosphere

stratosphere

mesosphere

Explanation:

The troposphere is the lowest layer of the Earth's atmosphere. It is where weather occurs and contains about 75 - 80% of the atmosphere's mass. The stratosphere is above the troposphere, the mesosphere is above the stratosphere, and the thermosphere is above the mesosphere.

Answer:

troposphere