Ants are animals belonging to the family Formicidae of Order Hymenoptera under the Class Insecta. There are more than 12000 ant species which are known it in this world. Some of the common types include...

Coal is a combustible organic rock which is primarily made of carbon, nitrogen and oxygen. It is mainly classified into different ranks or grades, based on the percentage of carbon in it.

There are more than 300 breeds of dogs in the world. These breeds are usually classified according to the type of job performed by them.

Clouds are generally classified into three types – High, Low and Middle types, depending upon their region of formation. They are further classified according to their shape and size.

Animal kingdom consists of many different types of animals, but still all the animal share common characteristics. They all are multicellular means made up of more than one cell. They do not contain any cell...