Mechanism of Breathing and Cellular Respiration
The mechanical process of breathing involves inspiration and expiration.
cellular respiration
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Disruption of Food-chains and Genetic Erosion
The population explosions of earlier and present days have already caused and are still causing serious impacts on the global environment. As for the biological environment, the human population has stressed most biological systems, comprising flora and fauna, as well as biological diversity.
Pollution of atmosphere
The condition produced due to ‘substances put into air by the activity of mankind into concentration sufficient to cause harmful effects to his health, vegetables, property or to interfere with the enjoyment of his property’ is called as air pollution or the atmospheric pollution
Biomass Energy and its implications
The dry weight of organic matter produced by plants, their derivatives and wastes are called as BIOMASS. The biomass includes crop residues, plant parts, body parts of dead animals and animal wastes. As biomass is created due to photosynthesis by plants, so energy from biomass or bio wastes is regarded as another form of solar energy.
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.
Glaciers of Himalaya are linked to our Existence
Fighting against the Climate Change which has become the biggest problem of environment is a big challenge of today.
Dynamics of Population
A population is a group of individuals (all members of a single species) who live together in the same habitat and are likely to interbreed. Each population has a unique physical distribution in time and space. It may contain individuals of different ages, and its size (density) is likely to change over time. It grows or shrinks according to the reproductive success of its members.
Reproduction and Variations
Living beings develop their population through reproduction. But reproduction is the process through which different traits appear in living beings. Variation is essential for evolution
Pesticides, their Types and Side Effects
A Pesticide is a chemical substance of natural or synthetic origin. It is applied in different forms to kill pests. Pests are living organisms that tend to harm humans, their crops and animals or have a tendency to disturb general household and living conditions. Some organisms can also be applied to kill pests. These organisms are called as biopesticides. On the other hand, pesticides that are synthesized in factories are called as synthetic pesticides.
Dahlia – One of The Amazing Flowers of winter
The first Dahlia flower in winter of the year was seen by me only today in my school garden. It looked so solitary, innocent and so beautiful that I could not resist the temptation of taking its photograph.
Ecological Niche and Ecological Habitat
Dictionary defines the term Niche as a comfortable or suitable position in life of a living being, or a role taken by a type of organism within its community.
The Death of Jordanov Bruno
Jordanov was a famous Italian philosopher, astronomer, mathematician and poet of 16th century. He was born in Shola, Italy in 1548.
