The National Chambal (Gharial) Wildlife sanctuary, which is one of the largest eco-reserves of the country is co administered by which among the following states?
A)Rajasthan & Uttar Pradesh
B)Rajasthan & Madhya Pradesh
C)Madhya Pradesh & Uttar Pradesh
D)Rajasthan, Madhya Pradesh & Uttar Pradesh

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Hint: Wildlife sanctuary is a protected area where the animals are protected in their natural habitat. The sanctuaries are taken care of by the national government. Human activities like hunting and poaching are strictly prohibited in this area.

Complete answer:
To solve this question, we must know about the National Chambal (Gharial) Wildlife sanctuary.The National Chambal Gharial Wildlife Sanctuary is a protected area in Northern India. It is a protected area for the endangered gharial, the red-crowned roof turtle and the endangered river Ganges dolphin. It is located on the river Chambal which is a 5400 square kilometer area spread over three states Rajasthan, Madhya Pradesh & Uttar Pradesh.
The sanctuary includes plants like Khair, palash, Butea, churel, ber and grassy patches on the either sides of the Chambal River.

Other than the endangered species, the other threatened species like mugger crocodile, otter, hyena, wolf, monitor lizard etc. various species of mammal like langaur, jackal, fox etc are also found here. The protected area is also a reserve of migratory birds from Siberia. Vulnerable species like Indian Skimmer, sarus crane are also protected here.

Hence, the correct answer is option (D)

Note: The sanctuary is open for sightseeing. Some parts of the sanctuary are threatened by illegal sand mining. This activity is causing threat to the lotic ecosystem which is dangerous for the breeding of Gharial.