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.
Cyclones are extremely disastrous hazards that originate in seawater. These are usually followed by rains and wind of very high speed.In fact, these are atmospheric disasters that occur mainly in coastal areas like coastal regions of Bangla Desh and India.
Jharkhand state of India has already been self sufficient in the area of Pisciculture. Now, the farmers of the state are working to make the state more progressive in the area of animal husbandry and to set new records for the state.
A forest is a highly complex and constantly changing environment. It is made up of a variety of living things like wildlife, trees, shrubs, wildflowers, ferns, mosses, lichens, fungi and microscopic soil organisms; and non-living things such as water, nutrients, rocks, sunlight and air. Trees are the biggest part of this complex community.
Conservation of species in their natural habitats- in areas where they occur under normal conditions is called in-situ conservation.
This type of conservation strategy protects the entire area. Such an area is protected and maintained to conserve all the known or unknown species inhabiting it.
In this type of conservation, species are not isolated or provided with health care, food, or mating facilities. Only factors detrimental to species’ existence and development are eliminated in this conservation strategy. Human interference, such as hunting, cutting down trees, collecting firewood, etc., is completely banned in such areas.
It is reported that about 30 million tones of dry leaves are dumped into landfills every year in America. In India most of these leaves are either burnt on the floor where they fall or collected by poor people and stored for burning during winter season to generate heat.
Conservation of the environment implies the sustainable use and management of natural resources, including wildlife, water, air, and soils.
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.
Salai tree or the Boswellia is the tree of economic and medicinal importance.
Human activities have never been friendly to environment. The remains of Mohenjo-Daro and Harappa signify that the civilization ended due to desertification which might had been caused by large scale deforestation. Still today impacts of such human activities have started appearing. Hence it is essential that we manage our natural resources properly.
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.
The application of scientific knowledge for practical purposes, especially in industry, is called as technology.
