Question

Consider the following statements regards to atmosphere:

A. Homosphere consists of Troposphere, Stratosphere and Mesosphere.
B. Ozone layer presents in Stratosphere.
C. Mesosphere is the coldest portion of atmosphere.
D. Heterosphere consists of Thermosphere and Ionosphere.

Choose the correct answer from the options given below:

1. Only one statement is correct
2. Only two statements are correct
3. Only three statements are correct
4. All of the above statements are correct

Answer 1

Analysis of the Statements:

1. Statement A: Homosphere consists of Troposphere, Stratosphere, and Mesosphere.

   • Correct: The Homosphere includes the Troposphere, Stratosphere, and Mesosphere, where the composition of gases remains uniform.

2. Statement B: Ozone layer presents in Stratosphere.

   • Correct: The Ozone Layer is located in the Stratosphere, where it absorbs harmful ultraviolet radiation.

3. Statement C: Mesosphere is the coldest portion of atmosphere.

   • Correct: The Mesosphere is the coldest layer of the atmosphere, with temperatures dropping as low as -90°C.

4. Statement D: Heterosphere consists of Thermosphere and Ionosphere.

   • Correct: The Heterosphere includes the Thermosphere and Ionosphere, where gases are stratified based on molecular weight.

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Correct Answer: All of the above statements are correct

• Explanation:
  • All the statements accurately describe the characteristics of the atmosphere.