Physics
Radiocarbon is produced in the atmosphere as a result of

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

ANSWER DOWNLOAD EXAMIANS APP

Physics
The nature of fuse wire is

High resistance and low melting point.
Low resistance and high melting point.
Low resistance and low melting point.
High resistance and high melting point.

ANSWER DOWNLOAD EXAMIANS APP