Terrible grammar. Either the asker does not speek English or is mentally challenged. I will slowly answer this question the best that I can. Humans... use oxygen... to breathe... If humans could not breathe they could not do anything industrial! That is "how humans you use oxygen in industry". They breathe it. You should try it. Your brain could use some oxygen numbnut!
Chemical industry, metallurgy industry, coal gas industry, and oxygen producing industry.
Both.
Lungs
oxygen
its denser than oxygen and our bodys werent ment to use it
water and oxygen. Then us humans can use use the water and the oxygen and in return we breathe out carbon dioxide, which plants can use.
Humans use their respiratory system to breathe in oxygen from the air and release carbon dioxide as waste. This process occurs in the lungs where oxygen from the air is absorbed into the bloodstream and carbon dioxide is removed from the body.
That means that oxygen is necessary for life to survive. Humans need oxygen to breathe and use for cellular respiration.
Most animals, including mammals, birds, fish, insects, and some reptiles, use oxygen for respiration. Additionally, many plants also require oxygen for cellular respiration, although they primarily produce oxygen through photosynthesis. Microorganisms like bacteria and fungi can also use oxygen for growth and metabolism.
Humans also use oxygen for cellular respiration to generate energy through the breakdown of glucose. Additionally, oxygen is used in the detoxification of wastes by the liver and is involved in the production of certain hormones and neurotransmitters in the body.
Oxygen is the gas in the atmosphere that is essential for human life. Our bodies use oxygen to generate energy through the process of respiration. Without oxygen, humans would not be able to survive.
oxygen for humans and carbon dioxide for plants