Sentences with phrase «percent less oxygen»

What's more, its air has 40 percent less oxygen than does the air at sea level.

Not exact matches

They determined a material with less than 90 percent carbon and enhanced by oxygen, rather than nitrogen or sulfur, worked best for both carbon capture and methane selectivity, especially for materials activated at temperatures approaching 800 degrees Celsius.

By looking at the chemistry of rocks deposited during that time period, specifically coupled carbon and sulfur isotope data, a research team led by University of California, Riverside biogeochemists reports that oxygen - free and hydrogen sulfide - rich waters extended across roughly five percent of the global ocean during this major climatic perturbation — far more than the modern ocean's 0.1 percent but much less than previous estimates for this event.

With an atmosphere of much less than one percent oxygen, scientists have presumed that there were things living in deep water in the mud that didn't need sunlight or oxygen, but Czaja says experts didn't have any direct evidence for them until now.

Less oxygen means less sulfate, but even 1 percent of the modern abundance is sufficient to kill methane, Olson sLess oxygen means less sulfate, but even 1 percent of the modern abundance is sufficient to kill methane, Olson sless sulfate, but even 1 percent of the modern abundance is sufficient to kill methane, Olson said.

Exhaled air contains 17 percent oxygen, less than 21 percent of fresh air, and 4 percent carbon - dioxide, which can inhibit cardiac contraction.

Since carbohydrate is richer in oxygen than fat, its metabolism requires 25 percent less water and generates 50 percent more carbon dioxide.

The three drag races between the two cars end with the Stingray on top each time, though just barely, but the video host points out that the test was done at high altitude where the air has less oxygen, putting the oxygen - loving Corvette V8 at about a 15 percent power disadvantage but having no effect on the electric motor of the i8.

Warmer water holds less oxygen, and the researchers found that 94 percent of the world's dead zones are in areas expected to see a temperature rise of 2 degrees Celsius or more by the end of the century.

For us less - oxygen - skilled humans, the Occupational Health & Safety Administration says «oxygen - deficient» air is less than 19.5 percent.

Although hydrogen generates about 62,000 Btu per pound, it accounts for only 5 percent or less of coal and not all of this is available for heat because part of the hydrogen combines with oxygen to form water vapor.

Pulse oximeters fit comfortably on a person's index finger and can ring an alarm when the heart rate exceeds 100 beats a minute, or goes less than 95 percent oxygen concentration in the blood.