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 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.
Salai tree or the Boswellia is the tree of economic and medicinal importance.
An association of all the plants at a particular place is called a Plant Community and the association of all the animals at the same place is called an Animal Community. Both the plant and animal communities inhabit a particular place living completely merged and interacting among them. Members of a community not only interact with the members of other communities, they interact with the members of their community and with the physical environment around them, as well.
More than half of the population of the world comprises farmers. These farmers know that maintaining and conserving natural resources are very important to sustain their lives. However, the demand of more and more food due to the exploding population and higher expectations for comfort and wealth enforces these farmers to exploit more and more of the natural resources through the application of modern technology. The agriculture based on the latest farm machinery, hybrid and high-yielding crop varieties and agrochemicals is called as modern agriculture. Under the changing trends of modern agriculture, the difficult situation of maintaining and conserving natural resources is being faced the world over in the agriculture sector.
Most of us have seen owls in our surroundings. Owls are hard to be seen in natural settings because they usually remain active during nights only.
With the growth of human population, more and more land was cleared for cultivation, housing and cattle rearing. Later, as towns and cities started developing, vast areas of land were started to be consumed in making roads, rail tracks, bridges, buildings, markets, trade centres, Educational and Research Centres, hospitals, railway junctions, etc.
Great diversities are found in terms of sexual reproduction among animals.
We have been hearing about environmental pollution, loss of biodiversity, energy crisis, and the sustainable environment since long. So many things have already been infused in school syllabi as well. But how many of us really apply in our real life the things about which we have read in our classes? If you collect yourselves and think seriously, you may find that you are still not as careful as you are supposed to be.
Pumpkin has been included in the healthful vegetables. It has been an important part of our food since centuries. But, now it has become a vegetable of less preference.
Family is a universal Organisaion. The structure and form of a family varies from society to society. Variations in the forms of family are created by culture, social system, social values, and conditions of life. It is difficult to classify family on any one of these bases.
Roots of plants too, respond to the changes in climate.
