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Earth contains 21 percent of oxygen in the atmosphere!coz earth contains only hot gases and oxygen is not a hot gas!:D
Wiki User
∙ 12y ago
Wiki User
∙ 11y ago21% is Oxygen, 78% is Nitrogen. There are small proportions of other gases.
Wiki User
∙ 11y agoApproximately 47% of the crust of the Earth is composed of oxygen.
Wiki User
∙ 8y agoEarths oxygen percentage is 20.95%.
Wiki User
∙ 12y ago20.946% by volume
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Oxygen makes up about what percentage of earth's air today?
20.9 % (almost 21%)Half a billion years ago the percentage was higher (in the mid-30s) due to abundant plant life. Before photosynthesis evolved, atmospheric oxygen was close to zero & poisonous to the earliest cells.it is 21% oxygen,that is ok because it isn't good to breathe pure oxygen
The highest percentage in the atmosphere is of?
The highest percentage in the Earth's atmosphere is nitrogen, at 78%. Then oxygen(21%) and CO2, 0.9%.
What is the percentage of oxygen at the top of a mountain?
At the top of Mount Everest, the percentage of oxygen in the air is the same as that at sea level (about 21% oxygen). However, atmospheric pressure decreases as altitude increases, and the atmospheric pressure at the summit of Everest is 33% that of sea level.Therefore, there is 66% less oxygen than there is at sea level.
What is Earth Gas?
earth gases are that naturaly formed on earth eg. oxygen and the one in are gas boilers that people pump out of the ground is methane.
What percentage of a Human is Water and what percentage is Carbon?
About 75% of a human is water, and about 18% is carbon.
What is percentage of oxygen in earth planet?
21%
What percentage of Earth's atmosphere iis oxygen?
21 %
Which of the eight planets has the highest percentage of oxygen?
Earth is only one planet where gaseous oxygen is found. The Earth's atmosphere is about 21% Oxygen.
What percentage of the air around us is oxygen?
The percentage of oxygen in the atmosphere is 20.75%. The atmosphere has many other elements that we breathe in besides oxygen. Oxygen needs to be present for life on earth.
What is the approximate percentage of oxygen in the atmosphere?
Earth's atmosphere is about 21% oxygen by volume (for dry air).
What percentage does nitrogen and oxygen make in the atmosphere?
Nitgrogen forms 80% of the Earth's atmosphere and oxygen 21%
What percentage of carbon dioxide is in the earth's crust?
The percentage of carbon dioxide is in the earth's crust is only 0.005%. Oxygen on the other hand makes up for 47% of the crust of the earth.
What planet has a nitrogen- oxygen atmosphere?
Earths atmosphere is rich in Oxygen, some 21% of the air is Oxygen. There is oxygen on other planets, but the percentage comes nowhere close to this. The percentage of Oxygen in earths atmosphere is thought to have been much higher in the past, before animals were about, but after the arrival of plants.
What is the percentage of oxygen in Saudi Arabia?
At sea level everywhere on the Earth oxygen makes up about 20% of the atmosphere.
Together oxygen and nitrogen compose what percentage of the Earth's atmosphere?
Roughly 99 percent
Oxygen makes up about what percentage of earth's air today?
20.9 % (almost 21%)Half a billion years ago the percentage was higher (in the mid-30s) due to abundant plant life. Before photosynthesis evolved, atmospheric oxygen was close to zero & poisonous to the earliest cells.it is 21% oxygen,that is ok because it isn't good to breathe pure oxygen
What process was primarily responsible for the development of the present percentage of free oxygen in the Earth's atmosphere?
photosynthesis
