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What else can I help you with?
Where do people get oxygen?
People get oxygen through the air they breathe. Oxygen is present in the Earth's atmosphere, comprising about 21% of the air we inhale. Our bodies extract oxygen from the air and use it to generate energy through a process called cellular respiration in our cells.
What would people do if there were no more oxygen in the air?
Without oxygen, people would not be able to breathe and would quickly suffocate. This would lead to unconsciousness and eventually, death. Maintaining adequate oxygen levels in the air is crucial for human survival.
What fraction of oxygen is air?
Roughly about 21% of air is oxygen.
Does inhale air has more oxygen or exhaled air?
Inhaled air has more oxygen compared to exhaled air. When we inhale, we take in fresh oxygen from the environment to use for cellular respiration. As we exhale, we release carbon dioxide and the remaining oxygen that was not used by the body.
What decimal shows what part of air is oxygen?
21% of oxygen is in the air so 0.21 is your answer
Did ancient people understand there was oxygen in the air?
No
Did ancient people understand that there was oxygen in air?
No. They had no idea nor the science to figure it out.
Ancient people understood there was oxygen in the air?
yeah i Think
What do you understand by fire?
The act of smothering a fire is to prevent air (oxygen) from feeding the flames.
How do you people use air?
People use air for oxygen, without air we would all be dead.
How many people needed oxygen?
From the air. The air consists of 78% nitrogen and 21% oxygen. The other 1% is made of argon, carbon dioxide and other gases. The oxygen is kept replenished when green plants photosynthesise. This involves the plant extracting the carbon dioxide from the air, absorbing water through its roots, and, using the green pigment chlorophyll in its leaves, convrts these two substances into sugars (its own food) and oxygen which is released into the air to replace what we have used.
Where do people get oxygen?
People get oxygen through the air they breathe. Oxygen is present in the Earth's atmosphere, comprising about 21% of the air we inhale. Our bodies extract oxygen from the air and use it to generate energy through a process called cellular respiration in our cells.
Who invented air cooling system in ancient Egypt?
ancient Egypt people
What do people breathe?
Air: 78% nitrogen, 21% oxygen, 1% other. We breathe oxygen and other molecules.
I don't understand how CPR works we breathe in oxygen and we exhale CO2 so how come during CPR when we breathe into the person we are exhaling CO2 into there body insted of oxygen?
Atmospheric air has about 20.5% oxygen and our lungs only extract about 4.5% oxygen, so the air we exhale has about 16% oxygen, 4.5% CO2. The air we breathe into the victim then has 16% oxygen for their lungs to extract oxygen from.
Why was there more oxygen in the air millions of years ago?
Millions of years ago, there was more oxygen in the atmosphere due to high levels of photosynthesis by ancient plants. These plants absorbed carbon dioxide and released oxygen as a byproduct, leading to higher oxygen concentrations in the air.
Are people safe in space?
people are not safe in space if there air tanks run out of oxygen because there is no air in space.
