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What is the minimum percent of oxygen needed to continue combustion?
15%
What gas is needed by animals to breathe in?
Animals need AIR to breath in - AIR is made up of about 80% Nitrogen and 20% Oxygen. The animals use the Oxygen in the AIR.NOTE if an animal were to breath 100% Oxygen this would eventually kill it, Pure Oxygen is toxic.They need to breath AIR.
Where does the oxygen needed for burning wood come from?
Oxygen is part of the mixture of gases we breath. Therefore, burning wood uses the oxygen in the atmosphere.
Why is photosynthesis needed for life?
it turns CO2 (which we cant breath in) into Oxygen. Then we breathe out CO2
How did oxygen get in to the family or why it is in that family?
Because your family couldent breath and you needed to let oxyen into your house.
What is the percent of oxygen is released in an exhale?
hi, as we breath in we breath in about 20% oxygen, we breath out 16%.. we only use about 4% of the oxygen we breath in..
High oxygen to low oxygen?
there is no such thing because we breath oxygen and breath out carbon dioxide
What do you breath in?
we breath in oxygen and breath out carbon dioxide.
How do praying mantis obtain oxygen?
breath in breath out breath in breath out
How do animals usually depend on plants?
animals usually depend on plants for oxygen. we breath out carbon dioxide and breath oxygen in, same with animals. and plants breath that carbon dioxide in and and breath out oxygen.
What type of air do you breath?
we breath in oxygen and plants breath co2
Where do you get oxygen?
We get Oxygen from atmosphere.It is in air we breath.
