1.Along with Jatropha, the seed oil of which among the following plants has been found to be useful in diesel generators being explored in hundreds of projects throughout India and other developing countries as feedstock for biodiesel?
[A] Arachis hypogea
[B] Pongamia pinnata
[C] Butea monosperma
[D] Pterocarpus santalinius
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Explanation: Pongamia pinnata is a medium-sized, evergreen or briefly deciduous tree. It has been found to be useful in diesel generators being explored in hundreds of projects throughout India and other developing countries as feedstock for biodiesel. ©navclasses
2.Which among the following always decreases in a Food chain across tropic levels?
[A] Number
[B] Accumulated chemicals
[C] Energy
[D] None of the above
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Explanation: The Pyramid of Energy is always upright. ©navclasses
3.Which among the following protocols is also related to the Access and Benefit Sharing (ABS) mechanism?
[A] Kyoto protocol
[B] Nagoya Protocol
[C] Geneva Protocol
[D] Cartagena Protocol
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Explanation: On 29 October 2010, some 18,000 participants representing the 193 Parties to the Convention on Biological Diversity (CBD) and their partners closed the Nagoya Biodiversity Summit by adopting historic decisions that will permit the community of nations to meet the unprecedented challenges of the continued loss of biodiversity compounded by climate change. ©navclasses
4.The Hydroponics is most closely related to which among the following?
[A] Grafting of Plants
[B] Water conservation
[C] Study of Vegetable
[D] Soilless culture of Plants
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Explanation: Hydroponics is a type of Horticulture and a subset of hydroculture, through which plants are grown without soil, by providing mineral nutrient solutions in a water solvent. ©navclasses
5.Which of the following is not among the four coral reef regions of India identified by the Government for intensive conservation and management?
[A] Gulf of Mannar
[B] Gulf of Khambat
[C] Lakshadweep Islands
[D] Andaman and Nicobar Islands
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Explanation: The four coral reef areas identified for intensive conservation and management in the country are Gulf of Mannar, Gulf of Kachchh, Lakshadweep and Andaman and Nicobar Islands. ©navclasses
6.The ‘thickness’ of Stratospheric Ozone layer is measured in/on:
[A] Sieverts
[B] Dobson units
[C] Melson units
[D] Beaufort Scale
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Explanation: The ozone layer was discovered in 1913 by the French physicists Charles Fabry and Henri Buisson. Its properties were explored in detail by the British meteorologist G. M. B. Dobson, who developed a simple spectrophotometer (the Dobsonmeter) that could be used to measure stratospheric ozone from the ground. Between 1928 and 1958 Dobson established a worldwide network of ozone monitoring stations, which continue to operate to this day. The “Dobson unit”, a convenient measure of the columnar density of ozone overhead, is named in his honour. ©navclasses
7.Which of the following Environmentalists first gave the concept of Biodiversity ‘hotspots’ ?
[A] Gaylord Nelson
[B] Norman Myers
[C] John Muir
[D] Julia “Butterfly” Hill
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Explanation: In the year 1988, Norman Myers (British ecologist) published a paper mentioning 10 tropical forest “hotspots.” They were characterized by exceptional levels of plant endemism as well as serious levels of habitat loss. ©navclasses
8.Apart from saving foreign exchange, the government of India wishes to reap the environment dividend by its Ethanol Blending Programme. What happens to Gasoline when Ethanol is blended in it?
1.Octane number of Gasoline is raised
2.Energy content per volume of the fuel mixture is increased
3.The engine is less likely to suffer damage
Choose the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] Only 3
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Explanation: The government of India wishes to reap the environment dividend by its Ethanol Blending Programme. When Gasoline is blended with Ethanol, Octane number (indicator of anti-knock properties of a fuel) of Gasoline is raised and the engine is less likely to suffer damage. ©navclasses
9.With reference to various applications of Fly Ash, consider the following statements:
1. Bricks made from residual fly ash are cheaper and of equivalent strength to that of conventional mud bricks.
2. Fly Ash concrete saves water and lowers heat of hydration in comparison to cement concrete.
Which of the above is / are correct statements?
[A] Only 1 is correct
[B] Only 2 is correct
[C] Both 1 & 2 are correct
[D] Both 1 & 2 are incorrect
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Explanation: The benefits of Fly Ash concrete is that it saves water, lowers heat of hydration, reduces the corrosion of steel and becomes strong quickly. ©navclasses
10.Green Climate Fund:
1. is a financial mechanism within the framework of UNEP.
2. is based in the new Songdo district of Incheon,South Korea.
3. in India, is managed by NABARD
Which of the above statements is/are correct?
[A] 1 Only
[B] 1 and 2 Only
[C] 1 and 3 Only
[D] 2 and 3 Only
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Explanation: First satement is wrong because GCF is a financial mechanism within the framework of UNFCCC. ©navclasses
