With reference to ‘fuel cells’ in which hydrogen-rich fuel and oxygen are used to generate
electriity, consider the following statements :
(1) If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by-products.
(2) Fuel cells can be used for powering buildings and not for small devices like laptop
computers
(3) Fuel cells produce electricity in the form of Alternating Current (AC).
Which of the statements given above is/are correct?
Environment
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Biofertilizers/Fuels
Environment › Biofertilizers/Fuels
Options
Answer
(A)
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Ecological Theory
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Indian Environment Acts
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International Org,TreatiesXEnvironment
Environment › International Org,TreatiesXEnvironment
With reference to an organization known as ‘BirdLife International’, which of the following
statements is/are correct?
(1) It is a Global Partnership of Conservation Organizations.
(2) The concept of ‘biodiversity hotspots’ originated from this organization.
(3) It identifies the sites known/referred to as ‘Important Bird and Biodiversity Areas’.
Select the correct answer using the code given below.Options
Answer
(C)
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Environment › International Org,TreatiesXEnvironment
With reference to the International Union for Conservation of Nature and Natural Resources (IUCN) and the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which of the following statements is/are correct?
(1) IUCN is an organ of the United Nations and CITES is an international agreement between governments.
(2) IUCN runs thousands of field projects around the world to better manage natural
environments.
(3) CITES is legally binding on the States that have joined it, but this Convention does not take the place of national laws.
Select the correct answer using the code given below.Options
Answer
(B)
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Marine Ecosystem
Environment › Marine Ecosystem
With reference to ‘dugong’ a mammal found in India, which of the following statements is/are correct?
(1) It is a herbivorous marine animal.
(2) It is found along the entire coast of India.
(3) It is given legal protection under Schedule I of the Wildlife (Protection) Act 1972.
Select the correct answer using the code given below.Options
Answer
(C)
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National Parks
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PollutionXImpact & remediation
Environment › PollutionXImpact & remediation
With reference to ‘fly ash’ produced by the power plants using coal as fuel, which of the
following statements is/are correct?
(1) Fly ash can be used in the production of bricks for building construction.
(2) Fly ash can be used as a replacement for some of the Portland cement contents of concrete.
(3) Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic
elements.
Select the correct answer using the code given below.Options
Answer
(A)