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Which of the elements is the most abundant in air a. nitrogen b. carbon dioxide c. oxygen d. hydrogen?
a. Nitrogen is the most abundant element in air, making up about 78% of the atmosphere.
How are oxygen and air related?
Oxygen is a component of air, which is a mixture of gases. Air typically contains around 21% oxygen, along with nitrogen, carbon dioxide, and other trace gases. Oxygen is essential for most living organisms to survive, and it is extracted from the air during the process of respiration.
Oxygen is the most abundant element by volume in Earth's?
Oxygen is the most abundant element in Earth's crust.
Which gas in the atmosphere is the second most abundant gas?
Oxygen is the second most abundant gas in Earth's atmosphere, making up about 21% of the air we breathe.
Which is the following is the second most abundant gas in our atmosphere?
Oxygen is the 2nd most common gas in air.Air composition (in % by volume and by moles):79% Nitrogen20% Oxygen1% other gases (argon, carbon dioxide, water vapor etc.)
Where does oxygen in the air come from?
photosynthesis
Where does most of the air huumans breath come from?
They come from plants. It is a cycle. (Carbon Dioxide and Oxygen Cycle) When you breathe out you realse Carbon Dioxide and the plants sucks it in and relase oxygen and that is what we breathe in.
Does air come from the sun?
No. Earth's atmosphere most likely originate from volcanic atmosphere. The oxygen is produced by plants.
What sources do oxygen come from?
air water trees
Where does the oxygen come from that reacts with the iron in a sparkler?
The air
Where does the oxygen atoms in H2O come from?
The oxygen atoms in water (H₂O) come from the air we breathe. When we inhale, our lungs absorb oxygen from the air. This oxygen is then used in the process of cellular respiration to produce energy for our body's cells.
Where do the oxygen atoms in the CO2 come from?
The oxygen atoms in CO2 come from the process of photosynthesis in plants. During photosynthesis, plants take in carbon dioxide from the air and water from the soil, and using sunlight as energy, convert them into glucose (sugar) and oxygen.
What is most of the air you breathe?
oxygen
Where did the oxygen come from when the Hindenburg exploded?
from the air around the airship.
What is oxygen most commonly found in?
Oxygen is most commonly found in the air of Earths atmosphere.
Where does the oxygen come from that you are breathing right now?
oxygen can be formed by the electrolysis of water, or by chemical reactions Oxygen is present in air, about 19% by volume, but it is not formed there. Most oxygen is naturally formed in green plants and algea by photosynthesis.
What gases make most of your air?
oxygen
