Cosmic rays are: ) high energy radiation produced by the sun. b) high energy radiation produced in the ozone layer. c) high energy radiation produced by the earth's core. d) none of these

Option (A)

Explanation:

Cosmic radiations are usually defined as a type of radiations that is comprised of high-energy photons and carry harmful ultraviolet radiation from the sun. These are emitted from the sun at a speed that is equivalent to the speed of the light.

When these radiations are incident on earth, it interacts with the upper atmosphere, resulting in the emission of charged particles such as pions, which undergoes decay and releases other smaller particles, commonly known as muons.

Thus, the correct answer is option (A).

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