Multiple choice

The atmosphere is made up of four layers. Which of the following is not a layer of the atmosphere?

  1. Troposphere

  2. Thermosphere

  3. Stratosphere

  4. Mesosphere

  5. Biosphere
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The biosphere is the global sum of all ecosystems. It can also be termed the zone of life on Earth. The biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, hydrosphere, and atmosphere.

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