Prevention of entry into the environment: According to this principle, pollutants are checked at the point of their origin and are not allowed to enter into the environment by the application of specific devices.
The population explosions of earlier and present days have already caused and are still causing serious impacts on the global environment. As for the biological environment, the human population has stressed most biological systems, comprising flora and fauna, as well as biological diversity.
The dry weight of organic matter produced by plants, their derivatives and wastes are called as BIOMASS. The biomass includes crop residues, plant parts, body parts of dead animals and animal wastes. As biomass is created due to photosynthesis by plants, so energy from biomass or bio wastes is regarded as another form of solar energy.
A Pesticide is a chemical substance of natural or synthetic origin. It is applied in different forms to kill pests. Pests are living organisms that tend to harm humans, their crops and animals or have a tendency to disturb general household and living conditions. Some organisms can also be applied to kill pests. These organisms are called as biopesticides. On the other hand, pesticides that are synthesized in factories are called as synthetic pesticides.
Cattle dung has been used in India to sweep cutcha houses and to make cakes for burning in kitchens. One of the best uses of dung is for making compost etc. manure. Indians, especially Hindus use cow dung for making compost, dung cakes and for religious purposes.
According to the Global Agriculture Information Network of America the oil seed production of India during 2020-21 may increase up to considerable level
It is now a general opinion that if we see something moving, it is alive.
Pakad or Ficus virens is one significant tree of the Panchvati group. Panchvati is the group of five sacred or important trees worshipped and adorned in the Hindu culture since ancient time.
Rains in Nepal have always been responsible for floods in Bihar. Most of the rivers flowing through Bihar have their origins in Nepal. Since last three days Nepal is experiencing continuous rainfall. This is why villages in Bihar are being seriously flooded. What can be done?
Most animals of the same kind have same body parts. But their body parts differ in size, shape, color and functions. They have different types of sense organs as well.
It has become a common thing to take phone in hand always.
The acid rain affects living and non- living components of environment. In July 1982, Stockholm- the venue of U N –conference on acid rain, suffered heavy acid showers for about a week. In India too, acid rains have been reported since last twenty years in areas where thermal power plants are located and also around Delhi, the capital of India.
