A long long long long llllllllllllllllllllllllllllllllooooooooooooooooooooooooooooooooooooooooooooonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnggggggggggggggggggg time.
forever probably, unless a meteor hits it.
as long as they could make it last.
most last a long time but the time depends on the size of the candles
They last forever.
It will last about 15 billion years
The is not enough information to answer this. We need to know what is burning, how much, and how fast, and how much oxygen we have.
Combustion or burning requires oxygen of the air. So, if there's no air, the flame will extinguish immediately because there's no oxygen.
not very long
it can last for as long as you can hold your breath. after that time you have 3 minutes before you pass out.
Burning anything in a closed room consumes oxygen. Additionally, the fumes from burning things can cause lung damage or even death due to smoke inhalation.
The oxygen concentration in the atmosphere today (which is at about 21%) has been at its current level for the past 400 million years.
not to long at all you need to fill it up
Because it won't last for very long :)
A person can last 4 minutes without oxygen, longer in extreme cold. It takes that long for the body to use up the oxygen in the blood.
An ML6 oxygen cylinder, when "charged" to normal pressures, holds 170 liters of oxygen. How long that will last depends on a number of factors. If the flow is set to 2 liters per minute continuous then it will last less than 1 and 1/2 hours. If an oxygen conserving device is used (they give the gas in pluses when breaths are taken) it can last over 4 hours.
6 seconds
20 minutes