the ozone layer helps to sustain terrestrial life by ____________. a. absorbing incoming uv radiation b…

the ozone layer helps to sustain terrestrial life by ____________. a. absorbing incoming uv radiation b. keeping levels of ozone in the troposphere low c. maintaining the earths temperature structure d. all of the above please select the best answer from the choices provided

the ozone layer helps to sustain terrestrial life by ____________. a. absorbing incoming uv radiation b. keeping levels of ozone in the troposphere low c. maintaining the earths temperature structure d. all of the above please select the best answer from the choices provided

Answer

Brief Explanations:

  • Option a: The ozone layer absorbs a significant amount of the Sun's harmful ultraviolet (UV) radiation. UV radiation can cause skin cancer, cataracts, and damage to plants and marine ecosystems.
  • Option b: Ozone in the troposphere (ground - level ozone) is a pollutant. The ozone layer (in the stratosphere) helps in keeping tropospheric ozone levels low by preventing excessive UV radiation which can contribute to tropospheric ozone formation through certain chemical reactions.
  • Option c: The absorption of UV radiation by the ozone layer also plays a role in maintaining the Earth's temperature structure. The energy from the absorbed UV is distributed in the stratosphere, affecting the overall thermal balance of the atmosphere.

Since all of the statements (a, b, and c) are correct about the functions of the ozone layer in sustaining terrestrial life.

Answer:

D. all of the above