Directions From the four answers given shade the appropriate answer in the space provided for it on the OMR Answer sheet. |
A) Oxygen
B) Chlorine
C) Nitrogen
D) Hydrogen
Correct Answer: A
Solution :
Ans. The ozone layer is a layer in Earth's atmosphere which contains relatively high concentration of ozone. This layer absorbs 93 to 99% of the Sun's high frequency ultraviolet rays, which is potentially damaging to the life on earth.You need to login to perform this action.
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