Environmental science is important for economy and welfare of human society. It helps us in careful handling of the issues like pollution, over exploitation of natural resources, food security and sustainable development. Excessive use of agrochemicals has degraded the environment and has disturbed the ecological balance.

Environmental science helps us to find ways and means to maintain the ecological balance. It demonstrate how man can derive benefits from environment without destroying it. It trains us to conserve ours fast depleting natural resources. It helps to understand different food chain and ecological balance in nature. It directs attention towards the problems of population explosion, depletion of natural resources and pollution and the methods of solving such problems.