Human beings are the creations of nature. They drew everything needed for their very survival from nature. The air they breathe, the water they drink, the food they eat and thousands of articles they use daily-all come from nature. Yet, strangely enough, man keeps a hostile attitude towards nature. Conquest of nature is the expression which is often used to denote man’s activities like space exploration, taming the rivers, etc. which sums up man’s attitude towards nature. Our earth is a unique planet. It is one of the eight planets in the solar system in the Milky Way.
It is the only planet known to have conditions suitable for life. In no other planet such conditions or any signs of life existing or to have existed in the past have been found. Nature has created this unique planet for the existence and survival of human beings. The conditions prevailing on the earth are suitable for our comfortable living. First of all, the distance from the sun is such that we get warmth to sustain life.
The scientists believe that nearness to the sun by a few thousand kilometres would have raised earth’s temperatures to such a degree that no life could survive. Similarly, if our earth had been away from the sun by a few thousand kilometres, this would have created freezing temperatures. Apart from warmth which created conditions suitable for life, air has been provided in abundance for human beings and animals to breathe.
We get necessary oxygen from the air we breathe. As breathing is our most pressing and regular necessity each moment, air has been provided on the earth’s closer-most atmosphere in great abundance. We just have to keep breathing; the air is always there for us.
But we are vitiating this atmosphere with our activities. Millions of big and small factories have been set up across the globe. The smoke coming out of the chmineys of these factories is causing air pollution. The number of vehicles is increasing day by day. The smoke...