oxygen is 21% of the air.
Nearly all living things depend on oxygen. In mammals it is found in the lungs and in the bloodstream.
The amount of oxygen is getting low so that the many living things in the water cannot get a normal amount of oxygen that can cause a fish kill.
Carbon is an element present in all living things.
In everyday life it is a gas. Oxygen is present in all living things: we would not survive without it.
Animals take in oxygen and release carbon dioxide.
Trace elements are present in tiny amount, and only 0.2% mass of a human.
For me the ecosystem is the place were living the living things and non living things and the importance of it to as is that they are produce the oxygen that we are in healing
Things that are not living.
Yes, because cells are living things and all living things need oxygen to survive.
Plants give living things oxygen to live.
Oxygen is the most important factor for living things.
Oxygen
Yes .