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Since the beginning of the Cambrian period, O2 levels have fluctuated between 15% and 30% of atmospheric volume. Towards the end of the Carboniferous period (about 300 million years ago) atmospheric O2 levels reached a maximum of 35% by volume, which may have contributed to the large size of insects and amphibians at this time.Whilst human activities, such as the burning of fossil fuels, have an impact on relative carbon dioxide concentrations, their impact on oxygen levels is less significant.
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What causes the periods of daylight and darkness to vary at different latitudes throughout the year?
earths tilt
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Joseph Priestley discovered oxygen in 1774.
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53: Percent
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about 2.2 centimeters
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The O stands for oxygen and the H stands for hydrogen. This is answered by a 9 year old.
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Tina's pay increase was 9.828% (10% to nearest percent).
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5 percent of 2000 on a 10-year CD from honor credit union is 100.
At what rate did the GNP of the Philippines grow from the year 2000 to 2001?
The Philippine GNP grew by 2.25 percent from 2000 to 2001.
How much interest would you receive for 2000 at 1 percent interest rate for 1 year?
1 percent of 2,000 is 20 .
How much percent does the oceans produce worlds oxygen?
Current thinking places it at between 50 to 85 percent, depending on time of year and the state of phytoplankton bloom.
What is the lenghth of earths year?
the length of earths year is 365 days, tho its not really hahaha
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2000/18000 x 100 = 11.1%
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Dodge Ram 1500 year 2000 Location of oxygen sensor?
There is one on each side of the catalytic converter.
What is the literacy rate of India in 2000?
what is the literacy rate of India as per 2000 census
How earths distance from the sun change throughout the year?
how does earths distance from the sun change throughout the year
Where is the oxygen sensor located on a 2000 Infinity QX4?
Oxygen sensors are located in exhaust manifolds or in exhaust pipes before and after the converters in most cars depending on the year of the vehicle
