Articles [General]

Soil pollution or land pollution is the contamination of land-with domestic wastes, industrial and commercial wastes, chemical fertilizers, pesticides etc. which makes the soil or land unfit for normal living, boil pollution involves the following...

The soil pollution that comes from different sources such as animal wastes, use of fertilizers, use of pesticides, fungicides, herbicides and nematocides that pollutes the land or soil and makes it unfit for further use is known or agricultural...

Source : Micro-organisms of diverse aquatic life such as bacteria, fungi, and algae to higher organisms such as fish live in natural waters. In pure water, the density of these organisms are comparatively less when compared to the polluted water....

Rains in general cleanse the ground waters apart from recharging the water sources. Rain water is acidic with a pH of 5.6 to 5.7 This is because of the reaction of water with CO2 to give carbonic acid, which is a weak acid. This small amount of...

The phenomenon of ‘photochemical smog’ is characterized by the formation of aerosols that reduce visibility and generation of brown hazy fumes that irritate the eyes and lungs. These fumes also affect vegetation and rubber goods. High...

Pollution associated with the urban development result in a spectrum of chemical and biological changes in our environment. Environment is composed of air, water and soil. These are inter- connected. Anything discharged into one compartment (air,...

Earth Quakes: The sudden tremors or shaking of the earth’s crust for a few seconds is called an earthquake. When a part of the earth’s surface moves backward and forward or up and down, the earth’s surface ‘quakes’, and these are called the...

A. The blotting –paper as answer to a problem A gentleman was ill. He took a medicine which was black in co lour. One day his servant gave him some ink by mistake. When he found out what he had done, he ran to his master and said, “I beg your...

Children’s literature in every Indian language has its origin in oral tradition comprising lullabies, Folk tales and stories from our classics, especially the Ramayana and the Mahabharata. Here are some books that you may like to know about. Bhima...

The movement of air which is caused by the non-uniform heating of Earth by Sun is called as Wind Wind Speed: Sometimes wind blows gently, refreshingly us. At other times, it blows strongly creating storms that cause widespread damages. We need...