Why light attracts these moths?
After it stops raining after a heavy down power in the evening numerous moths start flying flying away towards the…
After it stops raining after a heavy down power in the evening numerous moths start flying flying away towards the…
Our environment today is facing a number of problems. All those problems are causing dangers to take shape against the existence of the whole biosphere of this planet. But who is behind all those problems? The answer is – M A N.
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.
The environment of our earth has a number of life zones that support birth and development of all types of organisms.
All the life zones of the earth are collectively called as Biosphere.
The biosphere vertically extends into the atmosphere up to about 10 km and downwards into the oceans up to a depth of about6.9 km.
Parental traits are transferred from one generation to other generation by means of chromosomes, DNA, or Genes.
Book Review S. CHAND’S ENVIRONMENTAL EDUCATION CLASS XI BY DR. M. P. MISHRA PURPOSE OF THE BOOK This book on…
The physical and mental conditions that collectively affect the reproductive capacity of a male or a female are called as reproductive health. The reproductive health is most essential for reproduction.
Energy is essential for working and survival of all the organisms on this planet. In fact, it is the energy which enables organisms to perform their biological functions.
The process of recovering or reusing usable materials from discarded waste is called recycling. For example, about 15 per cent of Sulphuric acid is recycled in chemical manufacturing. In the early days, all the sulphur needed for the production of sulphuric acid was taken out of mines directly. But now, with the prevailing tendencies of recycling, sulphuric acid manufacturing industries are using sulphur from smelters, refineries, etc.
Both the banyan and tamarind trees have large canopy and plenty of leaves. These produce lots of oxygen and absorb lots of carbon dioxide. Thus, besides numerous other benefits they keep up the balance of environment.
On the local and regional levels, air pollution creates various types of problems against living and non- living environment. In the living environment it causes different types of physical, physiological and mental diseases.
Deforestation contributes up to 20 percent of greenhouse gas emission which is more than the combined emission by all the cars, trucks, planes, boats and, trains of the world. Deforestation threatens our climate. Besides this, it threatens the livelihoods of 1.6 billion people who depend on forests for food and economic activities. They serve as habitats to rare and so far, undiscovered species of plants and animals. They also play a key role in maintaining water cycles and preventing floods and soil erosion. Hence, forests across the world need urgent measure of protection by all possible ways, may it be through alternatives to deforestation.








