Ozone is the chemical that absorbs UV light. It is present in the stratosphere.
ozone
Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation.
physical
Yes.
Valence electrons are responsible for chemical boding.
ozone
Ultraviolet radiation from the sun passes through the atmosphere and reacts with plants, animals and the soil and water - unless it is absorbed by chemical reactions that it initiates in the upper atmosphere.
chlorofluorocarbon
Pyrogallol is a compound that can absorb oxygen.
Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation.
Light absorption is a physical process; but the effects of the absorption may be chemical.
physical
Luciferon was the chemical responsible to it.
No. The atmosphere is a mixture of different gasses.
It is a physical change.
Yes.
Valence electrons are responsible for chemical boding.