Oligotrophic vs Eutrophic Lakes vs Mesotrophic lake: Lake Ecosystem is an example for a lentic ecosystem. An aquatic ecosystem with stationary or relatively still water is called lentic ecosystem. Based on the trophic state* and productivity, the lake ecosystem is divided into three categories. Oligotrophic lake: A lake with low productivity, low nutrients and clear water with … Read more
What is In situ Conservation? In situ Conservation is one of the methods of the conservation of genetic resources in natural populations of plant or animal species. In other words, it is a set of conservation techniques involving the designation, management, and monitoring of biodiversity in the same area where it is encountered. What is … Read more
Which among the following can be categorized as the fallout(s) of Russian Revolution?1. Widespread acceptance of laissez-fairism.2. Increase in the dignity of labour.3. Mitigation of discriminations based on race, colour and sex.4. Abolition of slavery.5. Promotion of internationalism.Code:a) 1, 2 and 3b) 1, 4 and 5c) 2, 3 and 5d) 1, 2 and 4Ans. C 2. … Read more
What is Mineral ? A naturally occurring substance that has a definite chemical composition is a mineral. Minerals are not evenly distributed over space. They are concentrated in a particular area or rock formations. Some minerals are found in areas which are not easily accessible such as the Arctic ocean bed and Antarctica. Minerals are … Read more
Degradation of Soil and Conservation Measures Soil erosion and depletion are the major threats to soil as a resource. Both human and natural factors can lead to degradation of soils. Factors which lead to soil degradation are deforestation, overgrazing, overuse of Methods of soil conservation are listed below: Mulching: The bare ground between plants is … Read more