It depends on the breed of duck but, I think it's around 15-25 years. The oldest duck is around 27 years I think.
About 5 to 7 years
No.
Air, food, water.
In the continent that ducks live are in different parts like: africa, north america, etc.
Mallard ducks are available from most hatcheries. They are inexpensive, easy to breed and quite popular pets. You will need a male an female duck to breed, ad each duck needs to be at least two years old.
Mallard ducks live in a variety of climates, but are mainly found in wetland/moderate climate.
If the result you want is a mallard, yes. If mallards can just breed with other ducks, yes, a mallard duck can breed other breed ducks.
Mallard ducks are not capable of changing gender. There is no known species of duck that is capable of that.
Mallard ducks were never introduced. Mallards were the first duck ever on planet Earth.
in every type of wet lands exept for bogs
from an egg
Yes.
yes they do