ChemAvishKar

HYDROLOGIC OR WATERCYCLE
1.     The Hydrologic or Water cycle is probably the most important of all the natural cycles in the biosphere.
2.     More than 97% of water in the biosphere is found in the oceans, the remaining 3% is found on the continents and in the atmosphere....

SULPHUR CYCLE
1.     Sulphur, like nitrogen, is a basic constituent of proteins in plants and animals.
2.   It is found in the biosphere in a wide variety of forms. Sulphur dioxide (SO2) and Hydrogen Sulphide (H2S) are the important gaseous forms, and the sulphate ion (SO42-) is the common form found in water and soil. The distribution of sulphur in the...

NITROGEN CYCLE
Nitrogen in its gaseous form constitutes 79 percent of the atmosphere. However, it cannot be used directly by most forms of life.
It must be first “ fixed ”before it can be utilised by plants and animals. By fixation, nitrogen is converted into it’s chemical compounds, largely nitrates (NO3) and ammonia (NH3)....

NATURAL DRAFT COOLING TOWERS
A NATURAL DRAFT Cooling Tower is so called because it do not use fans for drawing air into the tower, instead it uses the natural air which is drawn into the tower naturally by the process of Natural Convectionfor cooling the hot water. It may be Cylindrical...