Environment Ecology

Q501.Which one of the following lakes has been recently included under National Lake Conservation Project?

Q502.The tallest known living tree

Q503.Consider the following fauna of India. 1. Gharial 2. Leatherback turtle 3. Swamp deer Which of the above is/are endangered?

Q504.If National Water Mission is properly and completely implemented, how will it impact the country? 1. Part of the water needs of urban areas will be met through recycling of waste water. 2. The water requirements of coastal cities with inadequate alternative sources of water will be met by adopting appropriate technologies that allow the use of ocean water. 3. All the rivers of Himalayan origin will be linked to the rivers of peninsular India. 4. The expenses incurred by farmers for digging borewells and for installing motors and pump-sets to draw groundwater will be completely reimbursed by the Government. Select the correct answer using the code given below.

Q505.A species is considered to be extinct if it has not been seen in its natural habitat for

Q506.Who is/are unique about ‘Kharai camel’, a breed found in India? 1. It is capable of swimming up to three kilometres in seawater. 2. It survives by grazing on mangroves. 3. It lives in the wild and cannot be domesticated. Select the correct answer using the code given below.

Q507.What is the role of Ultra-violet (UV) radiation in the water purification system? 1. It inactivates, kills the harmful micro-organisms in water. 2. It removes all the undesirable odours from the water. 3. It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of water. Which of the statement(s) given above is/are correct?

Q508.Which one of the following is not responsible for the extinction of a species?

Q509.Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R). Assertion (A): Mangroves are very specialised forest ecosystem of tropical and subtropical regions bordering certain sea coasts. Reason (R): They stabilise the shoreline and act as a bulwark against encroachments by sea. In the context of the above two statements which one of the following is correct?

Q510.Which of the following are the key features of ‘National Ganga River Basin Authority (NGRBA)’? 1. River basin is the unit of planning and management. 2. It spearheads the river conservation efforts at the national level. 3. One of the Chief Ministers of the States through which the Ganga flows becomes the Chairman of NGRBA on a rotational basis. Select the correct answer using the code given below.

Q511.Organization related to ‘Red Data Book’ or ‘Red List’ is

Q512.If you travel through the Himalayas, you are likely to see which of the following plants naturally growing there? 1. Oak 2. Rhododendron 3. Sandalwood Select the correct answer using the code given below.

Q513.The wetlands falling within urban areas which are being dealt with under the National Lake Conservation Plan with the aim of Pollution control are 1. Bhoj - Madhya Pradesh 2. Sukhana - Chandigarh 3. Chilka - Odisha 4. Pichola - Rajasthan Select the correct answer using the code given below.

Q514.Endangered species are listed in

Q515.Consider the following statements. 1. Animal Welfare Board of India is established under the Environment (Protection) Act, 1986. 2. National Tiger Conservation Authority is a statutory body. 3. National Ganga River Basin Authority is chaired by the Prime Minister. Which of the statements given above is/are correct?

Q516.Which of the following leaf modifications occur/occurs in desert areas to inhibit water loss? 1. Hard and waxy leaves 2. Tiny leaves or no leaves 3. Thorns instead of leaves Select the correct answer using the code given below.

Q517.‘Red Data Book’ is concerned with

Q518.Which of the following is/are unique characteristic/characteristics of equatorial forests? 1. The presence of tall, closely set trees with crowns forming a continuous canopy. 2. Co-existence of a large number of species. 3. The presence of numerous varieties of epiphytes. Select the correct answer using the code given below.

Q519.Other than poaching, what are the possible reasons for the decline in the population of Ganges River Dolphins? 1. Construction of dams and barrages on rivers 2. Increase in the population of crocodiles in rivers 3. Getting trapped in fishing nets accidentally 4. Use of synthetic fertilizers and other agricultural chemicals in crop-fields in the vicinity of rivers Select the correct answer using the code given below.

Q520.Which one of the following groups of animals belongs to the category of endangered species?