Resources of In...

The word 'ecosystem' was coined by _________.

Pradhan Mantri Krishi Sinchai Yojna
1. Provide end-to-end solution in irrigation
2. Increase agri productivity and production
3. Focus just on irrigation expansion
4. Multipurpose project
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In an ecotone, the species which become abundant are called ____________.

With reference to the food chains in ecosystems, which of the following kinds of organism is/are known as decomposer organism/organisms?
1. Virus
2 Fungi
3. Bacteria
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The organisms which feed on bodies of the dead organisms are __________.

Consider the following statements with reference to foodchains in ecosystems.
1. A foodchain illustrates the order in which a chain of organisms feed upon each other.
2. Foodchains are found within the population of a species.
3. A foodchain illustrates the numbers of each organisms, which are eaten by others.
Which of the statements given above is/are correct?

Which of the following crops cycles are correctly matched with their typical regions?
1. Cotton - Sugarcane - Wheat              :  Western Region
2. Paddy - Wheat - Madua                     :  Hill Region
3. Green manure - Wheat - Sugarcane  :  Tarai Region
4. Groundnut - Arhar                              :  Bundelkhand
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There is a concern over the increase in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon?
1. Discharge of nutrients from the estuaries.
2. Run-off from to land during the monsoon.
3. Upwelling in the seas.
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Green Revolution 2.0 which has been in news is a_________.

An aquatic plant introduced from America to check pollution turned out to be a troublesome weed in Indian water bodies. The name of this 'invasive alien species' is _________.