What are the three layers of the atmosphere and their heights?

Answer 1

Troposphere, Stratosphere, Mesosphere and Thermosphere

There are four important layers of the atmosphere.

The first layer is located between surface (ground zero) and 10-12 km. Of course this is not a constant number because if you are at the poles it is only 5 to 6 km.

The second layer, Stratosphere is situated between 10-12 km and 50 km.

The third one is Mesosphere and is located between 50 km and 85 km.

Finally Thermosphere is located between 85 km and 120 km.

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Answer 2

Victoria Argento

Troposphere (0-8 km), Stratosphere (8-50 km), Mesosphere (50-85 km).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.