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Phosphorus
Phosphorus is the chemical element in the periodic table that has the symbol P and atomic number 15. Phosphorus is commonly found in inorganic phosphate rocks and in all living cells. The most ... > more -
Rogue wave (oceanography)
Rogue waves, also known as freak waves, are relatively large and spontaneous ocean surface waves which can sink even large ships and ocean liners. In oceanography, they are more concisely defined as ... > more -
Tunguska event
The Tunguska event was an explosion that occurred at 60 degrees 55'N 101degrees 57'E, near the Podkamennaya (Under Rock) Tunguska River, in what is now Evenk Autonomous Okrug, at 7:17 AM on June 30, ... > more -
Instrumental temperature record
The instrumental temperature record shows the fluctuations of the temperature of the atmosphere and the oceans since the invention of ... > more -
Irrigation
Irrigation (in agriculture) is the replacement or supplementation of rainfall with water from another source in order to grow crops. The water source for irrigation may be a nearby or distant body of ... > more -
Soil contamination
Soil contamination is the presence of man-made chemicals or other alteration to the natural soil environment. This type of contamination typically arises from rupture of underground storage tanks, ... > more -
Automobile emissions control
Automobile emissions control covers all the technologies that are employed to reduce the air pollution-causing emissions produced by ... > more -
Evaporation
Evaporation is one of the two forms of vaporization. It is the process whereby atoms or molecules in a liquid state (or solid state if the substance sublimes) gain sufficient energy to enter the ... > more -
Urbanization
Urbanization or urbanisation is the increase over time in the population of cities in relation to the region's rural population. Urbanization has intense effects on the ecology of a region and on its ... > more
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