Question

Which two layers contain 99% of the air in our atmosphere?

Answer 1

Answer:

Troposphere. The lowest layer is known as the troposphere, which makes up approximately 75% of the total mass of the atmosphere and contains 99% of the atmosphere's water. The troposphere extends up to approximately 11 kilometers (7 miles) from the surface and is the layer where atmospheric gases are most concentrated.

Explanation:

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