source 1 global

Sewage that includes organic matter, animal and human excreta-one of the major pollutants of water in the urban and rural areas is the sewage. The sewage most often contains the organic matter that encourages the growth of microorganisms. These organisms besides spreading diseases also c..

Harmful results of Greenhouse Effect is global warming. While the green house gases enable life to exist, problems arise when the atmospheric concentrations of these gases increase. All climate changes up to the industrial revolution occurred naturally as very few gases were released by ..

Realising the changes in global climate and human interferences resulting in such changes, many global conferences are held in order to reach consensus among countries to plan and implement the measures to mitigate the harmful effects of climate change. They were 1) S..

Source of Electricity - Electrons in different metals can have different energies. If two of these metals are placed in a conducting liquid (electrolyte) a difference in electrical potential is set up between them. A pair of different metals arranged in this way is an electrochemical cell..

As proved earlier, the intensity of sound varies inversely as the square of the distance from the source. If two points are at distances d 1 and d 2 from a point source, then the intensities at these points will be in the inverse ratio of the squares of the distance..

1) Major source of carbon for the living world is carbon dioxide. Atmosphere contains about 700 x 10 9 metric tonnes of carbon dioxide while ocean water contains about 35,000 x 10 9 metric tonnes of carbon dioxide. 2) Carbonates of earth's crust derived from rocks, which by c..

Introduction - Man is surrounded by an ocean of energy but he has been able to tap only a fraction of it. The most colossal dynamo of all energy is the sun, an unimaginable vast powerhouse which affects everything on earth. But then, why do we hear about energy crisis? We know that energy can be co..

Distribution of various elements in the Earth's crust Water is one of the most abundant compounds on Earth, hence sea water is a vast source of a large number of elements. The Earth's atmosphere contains mainly nitrogen (78%), oxygen (21%), and other gases e.g., CO 2 , He, Ne ( ..

Polymers are classified based on their source of availability as follows: 1. Naturally occurring polymers 2. Semi synthetic polymers 3. Synthetic polyme..

Polymers are classified based on their source of availability as follows: 1. Naturally occurring polymers 2. Semi synthetic polymers 3. Synthetic polyme..