1.

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

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:I hope it helps you..Have a great day..Thank you..PLEASE MARK ME AS " BRAINLIST ".



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