Phosphorus Cycle plays a vital and indispensable role in living organisms. Phosphorus in the form of phosphates are necessary for the growth and maintenance ...

Oxygen Cycle is the second most abundant element in the atmosphere and is present to the extent of about 21 per cent and is essential for all life processes. ...

Wind energy has been used for hundreds of years for sailing, grinding grain and for irrigation. Energy in wind can be economically used for generation of ...

Biogas, as you know is a source of energy for cooking. Using a simple process, cattle dung is used to produce a gas (called biogas) that contains 55-70 per ...

Hydro-energy Hydro-energy is the cheapest, and cleaner and hence the best source of energy. Water power is developed by allowing water to fall under ...

Solar energy is the most readily available abundant source. It is free as it does not belong to anybody. It is also non-polluting. Solar energy has the ...

The term ‘Energy’ is derived from the greek ‘energon’ meaning work. It is utilized by every one in the world. We use energy in our day-to-day life, in our ...

Chernobyl Disaster. The worst nuclear accident in history occurred on April 26, 1986 at the 1000 megawatt Reactor IV at the multiunit Chernobyl Power ...

Biochemical Effects of Arsenic:  The insecticides, fungicides and herbiacides contain arsenic. Among the compounds of arsenic, those of As (III) are most ...

Fungicides:  These are used to check the growth of fungi. Fungi are plants without chlorophyll. So they cannot use solar energy to convert ...

Green House Effect The greenhouse effect received its name because the earth’s atmosphere acts much like the glass or plastic roof and walls of a ...

Ultraviolet spectroscopy is an important tool, which is helpful for the identification of organic compounds. However, it cannot be used to show the presence ...