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The composition of gases in exosphere is

Options

  1. AHelium and Hydrogen.
  2. BNeon and Oxygen.
  3. CNeon and Hydrogen.
  4. DHelium and Neon.

Correct answer

A. Helium and Hydrogen.

Step-by-step solution

- The exosphere layer is mainly composed of extremely low densities of hydrogen, helium and several heavier molecules including nitrogen, oxygen and carbon dioxide closer to the exobase. - Thus, the exosphere no longer behaves like a gas, and the particles constantly escape into space. - At this distance, radiation pressure from sunlight exerts more force on hydrogen atoms than does the pull of Earth's gravity. - Below the exosphere, molecules and atoms of atmospheric gases constantly collide with each other. - How

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