Plants and trees shed their leaves from time to time. This happens due to a number of reasons. From some plants and tree leaves continue falling throughout the year. At the same time new leaves continue developing to compensate their number.
It is said that corporations can destroy the world’s intact forests. They have also the Power to help save them. They can make an impact by introducing zero- deforestation policies. These policies require suppliers to produce commodities such as timber, beef, palm oil, and fibres for paper in such a way that has a minimal impact on natural forests and climate. These can also introduce paper procurement policies that set ambitious targets to maximise the use of post-consumer recycled wood, pulp, paper and fibre in their products and ensure that any virgin fibre used is certified by a rigorous third-party certification system.
In irrigated conditions 80 kg of Nitrogenous fertilizers, 30 kg of Phosphorus, 20 kg of Potassium and 20 kg of Sulphur fertilizers are recommended in one hectare of land for the linseed cultivation.
Some specific characters are found in the parents of each species. These characters are transferred from generation to generation through the process of sexual reproduction.
About 1000J radiant energy comes to the earth from the sun. Out of this, only 10% of the total energy is used up by green plants in the process of Photosynthesis. Remaining 990J of energy escapes away into the atmosphere. 10J of energy is stored in the form of chemical energy in starch and sugars.
Hindus and Hindu tribals believe that certain Gods live on some trees. They worship these trees and protect by all means. These trees are called as sacred groves.
Our natural resources are known to have some specific qualities of their own. These qualities are known as natural qualities. It is due to specific natural qualities that different natural resources have been useful to us and to the whole biosphere. But now, the condition has changed considerably. Most of our natural resources like air, water and soil have gone bad due to pollution of different types. What is pollution?
Varieties of Biological Resources are in international demand today. To meet this international demand, illegal smuggling of these resources is done through illegal routes. Some species of plants and animals have been threatened, rare, endangered or critically endangered due to such practices. Several valuable species of plants and animals have become extinct due to these activities. The international trade in animal body parts is increasing rather rapidly due to their high prices in the international markets. Where possible, the trade of whole animals is also in full swing.
Vast variability exists in the distribution or occurrence of different life forms in different habitats. The variability of life forms in a particular habitat is considered as the biodiversity of that habitat.
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.
