C! is your correct answer!
Answer:
The production of elements heavier than Iron takes place by adding neutrons to the atomic nuclei. These neutral particles do not feel any electrical repulsion from the charged nuclei. They can therefore easily approach them and thereby create heavier nuclei. This is indeed the way the heaviest chemical elements are built up.
There are actually two different stellar environments where this process of "neutron capture" can happen.
Explanation:
A state is another name for a country at the worl level.
Air pollution results from incomplete combustion of impure fuels.
Two-stroke engines emit 20% to 50% of their fuel unburned in the exhaust, but also a considerable amount of oil too. Air pollution is higher in this cases and includes a considerable amount of particulate matter.