Respiration<span> is a chemical process when glucose or other sugars react with oxygen to produce energy. It produces carbon dioxide and water as waste products.</span>
If the power is out long enough even the city folks will run out of water. Many homes are all electric, so as soon at the lights are out they have no heat, no hot water and they can't cook. ... If the power is out, gas stations can't pump gas. Once generators run out of gas, those people will be in the dark too.
The answer is 4 (four).
Hope this helps!!! :)
