Question

Which one is nearly absent in the ozone sphere?
A. Dust particles
B. Water vapours
C. \[C{O_2}\]
D. All the above

Answer 1

Hint: Ozonosphere belongs to the second layer of stratosphere in the atmosphere of Earth.

Complete step by step answer:
An area of the Earth's stratosphere that absorbs much of the Sun's ultraviolet radiation is the ozone layer or ozone shield. The ozone layer absorbs 97 to 99 percent of the Sun's medium-frequency ultraviolet light (from about 200 nm to 315 nm wavelength), which otherwise would potentially damage exposed life forms near the surface.It contains high ozone \[\left( {{O_3}} \right)\] concentrations in relation to other areas of the atmosphere, but it is still low in relation to other stratospheric gases. Because only elevated quantities of ozone gas are found in the ozonosphere, all other particles, such as dust particles, water vapours and \[C{O_2}\] , are absent. The Stratosphere is the layer in which the aircraft travels and it has no dust and other particles. We may assume that the ozone sphere has no dust and other gases.

So, the correct option is D. All the above

Note:
Ozone depletion is a significant environmental concern as it increases the amount of ultraviolet radiation reaching the surface of the Earth. To deal with this condition, The Montreal Protocol was adapted in 1987.