What is meant by radiation?
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The emission of highly charged particles and electro-magnetic rays from radioactive substances is called radiation.
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What is meant by oil spill?
How is oil spill caused?
Explain the following terms :
(a) Smog
(b) Pollutants
(c) CFC
(d) Eutrophication
Write a short note on the following:
(a) Radiation
(b) Oil spill
(c) Air pollution
(d) Noise pollution