Introduction

Biosphere is the region of earth where life occurs or it is the life zone of earth. It includes air water and land. Almost all part of the earth including the coldest poles, hottest deserts and the ocean depths supports one or other kind of life form. It is interesting to note that all the life forms on the earth are interlinked into a hierarchy or web, the web of life. Man is also a strand in this web. The biosphere is a complex of distinct ecosystems that represent the interactions between a group of organisms and the environment or habitat in which they live and from which they derive energy and nutrients.Atmosphere, hydrosphere, geosphere and anthrosphere can be considered parts of the biosphere.

It is estimated that about one and half million species of organisms have been already named and described by us. Many scientists argue that there can be more than forty million species existing on earth distributed along the length and breadth in the biosphere. Scientists working world over are adding thousands of new species to the list every year. It is evident that we know only a small bit of facts on the biosphere. The facts still hidden from our knowledge are thousands of folds than what we know already. The inquisitive mind of humans is trying to unfold the intricacies and mysteries of life.

The tragedy is that part of ecosystems and many species of organisms are vanishing from the biosphere before they are coming to the sphere of our knowledge. Vast span of the tropical rain forests and large stretches of wetlands are being destroyed due to human activities. We are not sure how many species of organisms thriving in some remote corners in the rain forest of some oceanic islands in the tropics and in Amazon and tropical Asian rain forests are disappearing along with their habitats. The vast oceans with such massive stretch and huge quantity of water are not free from impacts of human activity.

As children with inquisitive mind, we will have to look around to understand what is happening to the sphere of life. We should try to learn how species are distributed across the different spheres and how parameters like latitude, altitude and other ecological factors are influencing them. Small projects can be formulated taking examples from various realms around. This will help us to understand how nature has spun the different elements of life into much intricate and complex web of life. This will only help us to conserve life on this green planet and the children can be proud of their contribution to strengthen a fight for a mightier cause.