Science is on the verge of a male contraceptive pill, but until then, vasectomy, condoms, or swift kick of a mule to the scrotum, but that will likely render him impotent as well.
no no this natural poses over exertion have no side effects on fertility
Let's hope not
Not likely, since it happens well before he is a man, and just means he will be sexually mature/developed before the other kids his age.
Chlamidia. Get checked because the bacteria can make you infertile.
man made
the main cause of soil pollution is fertilizers and manure(man made). the make the soil infertile and unsuitable for growing plants.they also kill the earth worms which produce natural humus. pesticides are the next causes for soil pollution.
It usually does unless the man is infertile.
Iron ore is a natural mineral this is used by man to make Iron.
See "What is causing the depletion of the ozone layer?"
It is possible; it depends on the drug. Don't confuse infertile with impotent. Impotence is when a man cannot achieve and maintain an erection. A man can be impotent and fertile. Impotence is a side effect of some drugs.
Ozone depletion does not have types. But it can be depleted in 2 ways. Natural way and man made.
If a grown man catches it, yes, it is possible.