Evidences of evolution of life
Studies and researches that are done in different fields from time to time show increasing complexities in organisms than their ancestors. These studies and evidences show many important evidences of organic evolution.
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Sustainable Agriculture as Meant in the Indian Agricultural Policy
According to the Policy Document of Indian Agriculture Policy, Agriculture in India is a way of life, a tradition, which,…
Flow of Energy in an Ecosystem
Sun is the only source of energy in the biosphere. Every living being can get its share of energy through food only and the energy is directly or indirectly obtained from green plants only.
My Childhood Memories about Holi Festival
Holi is an ancient Hindu festival which is also called as the Festival of Colours, love and spring.
Industrial Pollution Control Measures
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.
A Strange Bioinsecticide
Ladybird is one uncommon compound word made by the union of two simple common words – Lady and Bird. But, the two simple words when joined together can produce strange effect.
What is Ozone layer? How is it depleted and what are the control measures?
Ozone absorbs ultraviolet radiations so that much of it is never allowed to reach to the earth surface. The protective umbrella of ozone layer in the stratosphere protects the earth from harmful ultraviolet radiations. Ozone plays an important role in the biology and climatology on the earth’s environment. It filters out all the radiations that remain below 3000Å. Radiations below this wavelength are biologically harmful. Hence any depletion of ozone layer is sure to exert catastrophic impacts on life in the biosphere.
Modes of Reproduction
Two organisms- male and female are essential for sexual reproduction. Now let us study some basic methods of reproduction in single organisms.
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.
Indicators of Environment
A substance, factor, change, living being or a system that quantifies and simplifies phenomena and helps in understanding complex realities,…
Important Processes of Reproduction
When both the ovaries are fully mature, they alternatively produce ova at the interval of 28 days. Release of ovum into the uterus through the fallopian tube is called as ovulation.
Palash-The State Flower of Jharkhand in India
Palash or Butea monosperma is an important tree of taxonomic family Fabaceae which is native to tropical and sub-tropical India. It is also found in Pakistan, Bangladesh, Nepal, and Srilanka etc.
