0
Does the atmosphere contain about 78 percent of oxygen true or false?
Wiki User
∙ 11y ago
The atmosphere we breath is actually mostly nitrogen (70% roughly). The 22% of oxygen in the air is used by our body to give the blood cells oxyen which is transported to the parts of the body that use it to make energy by combusting glucose with it. The byproduct, carbon dioxide, is expelled through the lungs. Therefore, the portions of what gases we inhale and exhale are different.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agofalse i keep seeing this answer all over the place with people saying that 78% of the air we breath is oxygen when actually its nitrogen which is 78% and 21% oxygen 1% argon 0.04%(it changes due to humidity) water vapour. no matter what anyone tells you unless its a scientist its 78% nitrogen.
ps: i know this because i just had a science lesson and every textbook and teacher at my high school told me the same.
age 13
Wiki User
∙ 11y agoyes...sorry, but no, the earth is not mostly made up of oxygen, it is mostly made up of nitrogen, in fact, 78% of the earth's atmosphere is made up of nitrogen
Wiki User
∙ 10y agoNo, Earth's atmosphere is mostly nitrogen, with around 21% oxygen and hydrogen making up much less than 1%.
Wiki User
∙ 8y agoAtmosphere contain only traces of hydrogen.
Wiki User
∙ 11y agoNo, mainly nitrogen
Wiki User
∙ 13y agono it is 78% nitrogen and 21% oxygen
Wiki User
∙ 11y agoJupiter. :D
Add your answer:
Earn +20 pts
Is it true or false The amount of nitrogen oxygen and water vapor in the atmosphere varies from place to place?
false
Did cyanobacteria change the young Earth's atmosphere by producing carbon dioxide?
False. Cyanobacteria changed earth's atmosphere by removing carbon dioxide and releasing oxygen.
Do all silicate minerals contain iron?
silicon, oxygen, iron and magnesium
Is the atmosphere unaffected by changes in the geosphere?
false
The atmosphere is unaffected by changes in the geosphere.?
false
Is the mesosphere is the layer of the atmosphere that contain ozone true or false?
true
Is it true or false The amount of nitrogen oxygen and water vapor in the atmosphere varies from place to place?
false
Are Organic compounds covalently bonded and they always contain oxygen?
False; they always contain Carbon
Is it true or false does the increased amounts of oxygen in the atmosphere may be causing global warming to occur at a faster than usual rate?
If your question is really about oxygen then it is false. And oxygen is not increasing in the atmosphere. If you are talking about carbon dioxide, a gas that IS increasing in the atmosphere, then it is true. Carbon dioxide is causing the speeding up of global warming.
True or false there was a great deal of free oxygen in earths atmosphere before the first life forms developed?
false
Did cyanobacteria change the young Earth's atmosphere by producing carbon dioxide?
False. Cyanobacteria changed earth's atmosphere by removing carbon dioxide and releasing oxygen.
Do all silicate minerals contain iron?
silicon, oxygen, iron and magnesium
Is The probability that a gamete produced by a pea plant heterozygous for stem height Tt will contain the recessive allele 100 percent?
false
Cellular respiration does not use oxygen. true or false?
no- respiration is the process by which cells break down simple food molecules to release the energy they contain in other words it's FALSE
True or False An annelid's blood does not typically contain hemoglobin?
False!it does contain hemoglobin
Does an oxyacid contain 2 atoms?
no it contains atleast two but can contain more also the question saids "only" so it's false
Organic compounds contain carbon atoms that are covalently bonded to other elements typically hydrogen and oxygen and other carbon atoms True or False?
true
