The Problems of Waste in our surrounding
Substances that are thrown out to some place due to their uselessness or excreted out of our body are called as waste substances.
biodegradable
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Cyclones and – Ways Of Their Mitigation
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.
Reproduction in Human Being
In human beings reproduction takes place through the activities of male and female reproductive organs. To understand this, it is essential to study the structure of male and female reproductive systems separately.
The Danger of Extinction of Ten Lac Species during this Century
These birds used to fly in and around our houses about some decades ago. But these birds are very rarely seen in our surroundings.
Basic Concept of Biodiversity
Vast variability exists in the distribution or occurrence of different life forms in different habitats. The variability of life forms in a particular habitat is considered as the biodiversity of that habitat.
How do Organisms Escape – Adverse Conditions ?
Abrupt changes in environment often do not give time to an organism to get ready and to face the challenges. As such the organism can survive only when it has sufficient abilities to tolerate these changes.
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.
All about wind energy
The Wind is Air in Motion. It is caused by differential heating of land, water, hills and mountain slopes by sun rays. About 25 % (i.e., 0.34 KW/m2) of incident solar radiation is dissipated as wind energy. There is kinetic energy in wind.
Heredity, Its Physical Basis and Variations
Some specific characters are found in the parents of each species. These characters are transferred from generation to generation through the process of sexual reproduction.
Social Dimensions of Environment
The Social Dimensions of environment incorporate – Demographic Pattern, Life styles of people, Human Health and Habitat, and Social Interactions…
Modern Agriculture and its impact on the Environment
More than half of the population of the world comprises farmers. These farmers know that maintenance and conservation of natural resources are very important to sustain their livelihoods. However, the demand of more and more food due to exploding population and higher expectations for comfort and wealth forces these farmers to exploit more and more of the natural resources through the application of modern technology.
