Environmental Science In Agricultural - Study Mode

[#196] Kanha National Park is located in
Correct Answer

(D) Madhya Pradesh

Explanation

Solution: Kanha National Park is located in Madhya Pradesh. Kanha Tiger Reserve, also known as Kanha-Kisli National Park, is one of the tiger reserves of India and the largest national park in the state of Madhya Pradesh. The present-day Kanha area is divided into two protected areas, Hallon and Banjar, of 250 and 300 km 2 , respectively. Kanha National Park was created on 1 st June 1955 and was designated a tiger reserve in 1973. Today, it encompasses an area of 940 km 2 in the two districts Mandla and Balaghat. The park hosts Bengal tiger, Indian leopard, sloth bear, barasingha and dhole. It is also the first tiger reserve in India to officially introduce a mascot, Bhoorsingh the Barasingha.

[#197] Sudden mass death of fish is more likely to occus in
Correct Answer

(A) Eutrophic lake

Explanation

Solution: Sudden mass death of fish is more likely to occur in Eutrophic lakes. A eutrophic condition is a term describing a situation where a water body has lost so much of its dissolved oxygen that normal aquatic life begins to die off. Eutrophic conditions form when a water body is "fed" too many nutrients, especially phosphorus and nitrogen.

[#198] Which of the following will help most in biosphere is the conservation of wildlife?
Correct Answer

(C) Making numerous sanctuaries

Explanation

Solution: Making numerous sanctuaries will help most in biosphere in the conservation of wildlife. A Wildlife Sanctuary is a protected area of importance for flora, fauna, or features of geological or other interest, which is reserved and managed for conservation and to provide opportunities for study or research. The Wild Life (Protection) Act, of 1972 provides for the establishment of Protected Areas in India. Sanctuaries help in protection of endangered species of plants and animals in their natural environment.

[#199] Soil erosion can be prevented by
Correct Answer

(B) Good plant cover

Explanation

Solution: Soil erosion can be prevented by good plant cover. Soil erosion is the denudation or wearing away of the upper layer of soil. It is a form of soil degradation. The roots of the plants bind the soil together, and interweave with other roots, forming a more solid mass that is less susceptible to both water and wind erosion. Vegetation acts as an interface between the atmosphere and the soil. It increases the permeability of the soil to rainwater, thus decreasing runoff. It shelters the soil from winds, which results in decreased wind erosion, as well as advantageous changes in microclimate.

[#200] The common source of energy in our villages is
Correct Answer

(B) Wood and animal dung

Explanation

Solution: The common source of energy in our villages is wood and animal dung. Dry dung fuel is animal feces that has been dried to be used as a fuel source. It is used in many countries. Using dry manure as a fuel source is an example of reuse of excreta. Wood fuel is a fuel such as firewood, charcoal, chips, sheets, pellets, and sawdust. The use of wood as a fuel source for heating is much older than civilization.