Dihydrogen releases large quantities of heat on combustion. The date on energy reased by combustion. The data on energy released by combustion of fuels like dihydrogen, methane, LPG etc., are compared in terms of the same amounts in mole, mass and volume. From this table it is clear tha…

Pathogenesis: The most serious water pollutants are the diseases causing agents called pathogens. Pathogens include bacteria and other organisms that enter water from domestic sewage and animal excretra. Human excretra contain bacteria such as Escherichia coli and Streptococcus faecolis…

Domestic wastes are collected in small bins, which are then transferred to community bins by private or municipal worker. From these community bins , these are collected and carried to tht disposable site. At the site, garbage is sorted out and separated into biodegradable and non- biodeg…

Prior to World War II, many naturally occurring chemicals such as nicotine ( by planting tobacco plants in the crop field), were used as pest controlling substances for major crops in agricultural practices. During World War II, DDT was found to be of great use in the control of malaria…

The study of Chimestry is very important as it's domain encompasses every sphere of life. Chemists study the properties and structure of substances and the changes undergone by them. All substances contain matter which can exist in three states- solid, liquid or gas. The constituent…