Importance of Water Caltrop – Trapa nutans
Singhara is known as the Water Caltrop in English. In Botany it is known as Trapa nutans. Its other two species are Trapa bicornis, and Trapa rossica. The later is an endangered species.
Singhara ata
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Population Control
Through different means – natural and unnatural the process of keeping in a limit the growth of population is called as Population Control. It is essential for the welfare of human families. This is the reason why its name has been changed to the Family Welfare.
How does energy flow through an ecosystem?
Consumers too utilize some energy in their metabolic processes. Under these conditions some energy escapes away in the form of their body heat and some energy is wasted through excretory matter from their bodies. The rest of the energy goes into the atmosphere when top consumer dies and its body is decomposed.
Direct causes of the loss of biodiversity
Species become endangered due to both natural and anthropogenic causes. Since man has no control over natural causes, we should consider anthropogenic causes only. Anthropological causes may be classified into two fundamental categories: Direct Causes and Indirect or underlying causes.
Origin and Characteristics of a Family
The early man started his life as an individual. Gradually he came in contact with his fellows and he started developing a social life. At any period of human life it is hard to understand that a man ever remained in isolation. Thus this hypothesis does not cover the whole thing.
Some Types of Technologies
There are many different types of technologies or technological models- such as Low-tech, Hi-tech, alternative, intermediate, appropriate, blended, hard, and soft technologies.
Water Pollution- Sources and Control
Mixing of different solid, liquid or gaseous substances and microorganisms into water, so as to alter its natural qualities is called as water pollution. According to the National Water Commission (1973), water gets polluted if it has not been of sufficiently high quality to be suitable for the highest uses people wish to make of it at present or in future.
Makar Sankranti: Cultural and Religious Significance
Sankranti or Solstice means: moving from one place to the other or meeting with another. When sun enters from one rashi o the other rashi, it is called as Sankranti.
The Dangerous habit of repeated checking of phone
It has become a common thing to take phone in hand always.
Food spoilage and preservation
Food spoilage is the undesired process through which the quality of food deteriorates to a point that it no longer remains fit for eating. Such a food becomes harmful or poisonous and any one eating such type of food may fall ill seriously.
First December, the World Aids Day: The Danger Still Waits
The World Aids Day is celebrated the world over on the first December every year to make the public aware about the infection of HIV (Human Immuno Virus).The celebration of this day on the world scale was first started by the World Health Organisation in 1987.
Urban Environment Facing lots of Problems …
As per an assessment, about 600 million people inhabited urban areas of the world in the year 1950. But now urban areas have been recorded to be inhabited by about half of the total population.
