deep sea environments

1) Decomposers like Aspergillus (aerobic fungi), Neurospora (aerobic fungi) and Escherichia (anaerobic bacteria) act on the dead and decaying organic matter of plants and animals, releasing hydrogen sulphide (H 2 S) to the environment. 2) Heterotrophic bacteria like Desulfavibrio and Ace..

These are fish that are sustained in salt-water bodies like seas and oceans. This requires mechanisation. Fishing trawlers fitted with sophisticated electronic fish locating equipment are used for deep-sea fishing. Some marine fish are Bombay duck, Catfish, Mackerels, Red mullet..

. Thermal stratification occurs in lakes The epilimnion - temperatures upto 22 o C during summer. The hypolimnion - temperatures betwee..

Question: Inland fisheries refers to 1. culturing fish in freshwater 2. trapping and capturing fishes from sea coast 3. deep sea fisheries 4. extraction of oil from fishes Answer: ..

Pollution of Water - Pollution of the environment is a major global problem of today. It is heartening to note that in the last 25 years or so, scientists and environmentalists have created a great deal of awareness on environment pollution. Several national and international la..

Environmental legislation means laws for the protection of the environment. Some of the important environmental laws are 1) 1972 - UN conference on Human Environment held in Stockolm recommended that a) People should be educated about the cause of environmental deterioration an..

. Tidal mills were used for hundreds of years in some of the European countries. Schematic view of Turbines Fixed at the Bottom of a Reservoir The first small wave-energy device was built in Japan by Yoshio Masuda. Hundreds of navigation buoys use his system in the Sea of Japan. The Japan..

a) Carbon dioxide is released back to the environment by respiration of producers and consumers b) Released by the decomposition of organic wastes and dead bodies by the action of bacteria and fungi on decay. c) Burning of wood and fossil fuels add considerable amount of carbon dioxide i..

Green house is usually a type of glasshouse used for raising tender plants. Air inside the green house is usually warmer than the outside, though it receives less solar radiation due to the carbon dioxide present inside, produced by plants (by respiration). This is called 'green house effect'. In n..

Gas Some important uses Helium In meteorological balloons; as a breathing mixture for deep-sea diving; as a coolant in low temperature research (cryogenics) Neon In discharge tubes for neon lamps. and neon signs Argon For filling the incandescent light bulbs; for..