Q.

In the absence of ozone layer, Which rays will enter into atmosphere?

A. Infrared
B. Visible
C. Ultraviolet
D. X-rays
Answer» C. Ultraviolet
Explanation: The ozone layer is a layer in Earth's atmosphere containing relatively high concentrations of ozone (O3). The ozone layer absorbs 97-99% of the Sun's medium-frequency ultraviolet light (from about 200 nm to 315 nm wavelength), which potentially damages exposed life forms on Earth.
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