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In a village in Karnataka, people started cultivating crops all around a lake which was always filled with water. They added fertilisers to their field in order to enhance the yield. Soon they discovered that the waterbody was completely covered with green floating plants and fishes started dying in large numbers. Analyse the situation and give reasons for excessive growth of plants and death of fish in the lake.

Eutrophication is the process in which a water body becomes overly enriched with nutrients, leading to plentiful growth of simple plant life. The... View Article

Select the incorrect statement (a) Economic development is linked to environmental conservation (b) Sustainable development encourages development for current generation and conservation of resources for future generations (c) Sustainable development does not consider the viewpoints of stakeholders (d) Sustainable development is a long-planned and persistent development

c) Sustainable development does not consider the view points of stakeholders. To avoid plunder of natural wealth, the development activities... View Article

In our country, there are attempts to increase the height of several existing dams like Tehri and Almati, dams across Narmada. Choose the correct statements among the following that are a consequence of raising the height of dams (i) Terrestrial flora and fauna of the area is destroyed completely (ii) Dislocation of people and domestic animals living in the area (iii) Valuable agricultural land may be permanently lost (iv) It will generate permanent employment for people (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii) and (iv) (d) (i), (iii) and (iv)

b) (i), (ii) and (iii) The consequences of raising the height of dams are as follows Terrestrial flora and fauna of area is destroys... View Article

The important message conveyed by the ‘Chipko Movement’ is (a) to involve the community in forest conservation efforts (b) to ignore the community in forest conservation efforts (c) to cut down forest trees for developmental activities (d) government agencies have the unquestionable right to order the destruction of trees in forests

a) To involve the community in forest conservation efforts The main aim was to protect the trees by hugging them and not allowing cutting... View Article