(par 6.3.5) 8 Uses of Oxygen in Everyday Life

8 Uses of Oxygen in Everyday Life Oxygen is a common gas available in the air. It accounts to 20.8% of all gases in the air. It is chemically represented as “O” and element oxygen is represented as O2. It is one of the widely distributed gases in the atmosphere after Nitrogen. It is a […]

(par 6.3.4.2) Value of birds to humans and nature

Importance of Birds to Humans & Nature http://www.rajaha.com/importance-of-birds-humans/ Birds are unique living beings with their ability to fly. There are many types of birds and we see only few them around the place of human residence. The importance of birds seems minimal due to technological advancement and current life style. Many of use do not […]

(par 6.3.4.2) The importance of animals in human Life

How animals help humans? Their Importance in Life http://www.rajaha.com/importance-of-animals/ Animals are a gift of nature to us. They are the ones which are closely associated with us in daily life. Animals contribute a lot to humans lives, maybe even more than the plants. It will be tough to image life without animals. They serve humans […]