Physics
The swing of a spinning cricket ball in air can be explained on the basis of

Turbulence caused by wind.
Bernoulli's theorem.
Buoyancy of air.
Sudden change in wind direction.

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Physics
Radiocarbon is produced in the atmosphere as a result of

Collision between fast neutrons and nitrogen nuclei present in the atmosphere.
Lightning discharge in atmosphere.
Action of ultraviolet light from the sun on atmospheric oxygen.
Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere.

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