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Roughly 318 ppm (parts per million), or 0.0318% compared to 392 ppm currently (March 2011).
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What is the source of oxygen that is released by a photosynthesis during the light reactions?
The source of Oxygen is the Carbondioxide in the air.
What is the percentage of carbondioxide in the atmosphere?
The level of carbon dioxide in air from remote locations is 0.0385% by number of molecules 0.0578% by mass City air or indoor air typically has significantly higher carbon dioxide levels. This has increased from about 0.031% by molecule (0.046% by mass) in the last century, and a pattern for the previous 400,000 years between 0.020% (0.030%) in the ice ages and 0.028% (0.042%) in the warmer interglacial periods.
What is one gas that trap heat and prevents it from escaping into the atmosphere?
carbondioxide [CO2] and carbondioxide [CO] are the main gasses that trap heat.
Is carbondioxide heavier than air?
Yes. Slightly. **********2nd Opinion*********** Carbon dioxide has a higher density than air. Air density is about 1.3 g/L CO2 density is about 2 g/L
How do you find nitrogen percentage in air?
The percentage of nitrogen in pure, dry ,standard air is 78,084 % (by volume).
Which air makes the lime water milky?
Carbondioxide
What air makes colorless caustic potash turn milky?
Carbondioxide
Why does the volume of air in the spirometer drop slowly over the first minute?
The person breathes in oxygen and breaths out carbondioxide back into the spirometre. Because the carbondioxide can become a saftey hazard, soda lime is placed in the spirometre to remove the carbondioxide, however the volume of carbondioxide is equal to the volume of oxygen, as the oxygen is not being replace, so removing the carbondioxide removes the oxygen as well, making the spirometre drop.
What is the source of oxygen that is released by a photosynthesis during the light reactions?
The source of Oxygen is the Carbondioxide in the air.
Are a fish nostrils used for breathing?
To smell the water and better protect themselves
Why the pH of groundwater slightly decrease upon exposure to air?
when the groundwater is exposed to the air the carbondioxide present in the air gets dissolved in the water due to which the ph of groundwater decreases
What is the percentage of carbondioxide in the atmosphere?
The level of carbon dioxide in air from remote locations is 0.0385% by number of molecules 0.0578% by mass City air or indoor air typically has significantly higher carbon dioxide levels. This has increased from about 0.031% by molecule (0.046% by mass) in the last century, and a pattern for the previous 400,000 years between 0.020% (0.030%) in the ice ages and 0.028% (0.042%) in the warmer interglacial periods.
What percentage of people live in urban areas in japan?
Approximately 92% of people in Japan live in urban areas. Japan has a high population density, with a significant portion living in cities and metropolitan areas.
What do the lung produces?
Carbondioxide
Who discovered carbondioxide?
j.black
What is the waste that you exhale?
carbondioxide
What do we breathe out?
we breath carbondioxide
