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Tropospheric ozone
Ozone (O3) is a key constituent of the troposphere. Photochemical and chemical reactions involving it drive many of the chemical processes that occur in the atmosphere by day and by night. At ... > more -
Flatulence
Flatulence is the presence of a mix of gases known as flatus (lat. flatus = "wind") produced by symbiotic bacteria and yeasts living in the gastrointestinal tract of mammals. The average human ... > more -
Developmental psychology
Developmental psychology is the scientific study of progressive psychological changes that occur in human beings as they age. Originally concerned with infants and children, and later other periods ... > more -
Scientific method
Scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. It is based on gathering observable, empirical and ... > more -
Color blindness
Color blindness, or color vision deficiency, in humans is the inability to perceive differences between some or all colors that other people can distinguish. It is most often of genetic nature, but ... > more -
Spanish flu
The Spanish Flu Pandemic, also known as La Grippe Espagnole, or La Pesadilla, was an unusually severe and deadly strain of avian influenza, a viral infectious disease, that killed some 50 million to ... > more
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