Difference between Acne and Boils. Key Difference: Acne is the disorder of the skin that is caused by oil and/or debris clogged pore. It is characterized by a presence of pimples, blackheads and whiteheads. A boil occurs due to an infected hair follicle. The infection is usually caused by the bacteria known as Staphylococcus.
By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.
Which of the following best describes the composition of the atmosphere. A. 78% Nitrogen, 21% Oxygen, and 3% water vapor. B. 78% Nitrogen, 21% Oxygen, 1% Argon, water vapor. C. 78% Nitrogen, 21% Oxygen, 1% Argon, water vapor, and carbon dioxide.