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Introduction - Chemical reactions mostly take place in solutions. Solution chemistry plays a very significant role in chemistry. All chemical substances are made up of either polar units (called ions) or non-polar units. The activity of these entities is more evident and pronounced in solution. The..

Everything that we use or consume - food, clothes, vehicles, tools, petrol, furniture, medicines, books, toys, and the infrastructure of electricity, roads bridges, and buildings are obtained from resources on this earth. The only thing one gets from outside is the sun's energy and even this is co..

An Overview of Natural Resource Management - Our natural resources are our assets whose prudent and sustainable use is necessary for the well being of humans and other living other organisms. Unfortunately, the continuous and ever increasing demand for basic items of survival and technological deve..

The endocrine gland attached to the roof of third ventricle in the rear portion of brain, is known as the pineal gland, named for its resemblance to a pine cone. It has no direct connection with central nervous system. It is variable in size and weighs about 150 mg, but it is richly vascularised an..

>Green chemistry encompasses all aspects and types of chemical process including synthesis, catalysis, analysis, monitoring, separations and reaction conditions, which reduce or eliminate the use or generation of hazardous substances. Green chemistry technologies can be categorized into one or more..

Johannes Kepler derived three laws, which govern the planetary motion: The orbit of a planet is an ellipse with the Sun at the one of the foci The line joining the planet and the Sun sweeps equal areas in equal intervals of time The cube of the mean distance of a planet from the ..

Crop Improvement - Each crop is, in fact, an adaptation from wild type to a cultivated type. Wild types or wild species of each crop can be traced to their natural habitat where such species are grown naturally without human interference. Even cultivated species of a crop exhibit greatly varying cl..

Photochemical Reactions - There are many reactions that are affected by electromagnetic radiations. Chemical reactions, which occur in the presence of visible and ultraviolet light are called photochemical reactions. Photochemical reactions occur only when photons of radiant energy (h n ) are absor..

To prevent adulteration and to maintain availability of good quality food stuff, the government has set up certain institutions for standardization. They are: Codex Alimentarius Prevention of Food Adulteration Act (PFA) The Agmark Standards Bureau of Indian Standards (BIS) These instituti..

Before interference by any human activities green house effect by a coverage of gaseous blanket was in close equilibrium with earth's surface in the form of equilibria of carbon, oxygen and hydrogen cycles. Contribution of CO 2 by natural decay of plants and animals or by respiration by animals to ..