91. Consider the following statements:
1. Biodiversity is normally greater in the lower latitudes as compared to the higher
latitudes.
2. Along the mountain gradients, biodiversity is normally greater in the lower altitudes as
compared to the higher altitudes.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
92. There is a growing concern about the melting of Arctic permafrost. Why?
(a) It will result in the increase of methane concentration in atmosphere.
(b) All the countries surrounding North Pole will be permanently submerged.
(c) The temperature of ocean currents will be drastically altered.
(d) The pH of the ocean water will be drastically changed.
93. With reference to Pre-Conception and Pre-Natal Diagnostics Techniques (Prohibition of sex selection) Act, 1994, which of the following statements is/are correct?
1. Every offence under this Act is cognizable non-bailable.
2. For the first offence, the penalty for the doctor is ‘upto 7 years of
imprisonment with a fine up to Rs. 1,00,000.’
Select the correct answer using the code given below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
94. ‘Nagoya Protocol’, sometimes seen in news refers to:
(a) Convention on International Trade in Endangered Species of Wild Fauna and
Flora
(b) Convention on the Conservation of Migratory Species of Wild Animals
(c) Convention on Biological Diversity
(d) Convention on Wetlands of International Importance especially as Waterfowl Habitat
95. Some substances known as ‘Short-Lived Climate Forcers’ (SLCF) assume importance in the context of climate change. Which of the following is/are SLCF?
1. Black carbon
2. Carbon dioxide
3. Hydrofluorocarbons
4. Methane
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 1, 3 and 4 only
(c) 3 and 4 only
(d) 1, 2, 3 and 4
96. Consider the following statements:
1. Production of cement blended with fly ash or slag (blended cement) is less energy efficient compared to the production of ordinary portland cement.
2. ‘Electricity and heat production’ together constitute the single largest contributor of greenhouse gases in India.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
97. What is the present share of agriculture and allied sectors in the Gross Domestic
Product of India?
(a) Less than 20%
(b) Between 20% and 30%
(c) Between 31% and 35%
(d) Above 35%
98. The global warming potential is highest among which of the following greenhouse gases?
(a) CO2
(b) CH4
(c) N20
(d) SF6
99. Which of the following is/are included in Kyoto Protocol?
1. Brominated flame retardants
2. Methyl alcohol
3. Hydrofluorocarbons
Select the correct answer using the code given below:
(a) 1 and 2
(b) 2 and 3
(c) 3 only
(d) 1 only
100. In the context of food processing, the addition of sulfites (sulphites) to fruits and
vegetables has which of the following effects?
1. Prevention of browning
2. Increase in sour taste
3. Destruction of thiamine
4. Preservation of thiamine
Select the correct answer using the code given below:
(a) 1 and 3 only
(b) 2 and 3 only
(c) 2 and 4
(d) 1, 2 and 3
101. Which of the following has/have antioxidant properties?
1. Ascorbic acid
2. Butylated hydroxyanisole
3. Stannous chloride
4. Tocopherol
Select the correct answer using the code given below:
(a) 1, 2 and 3 only
(b) 2, 3 and 4 only
(c) 1 and 4 only
(d) 1, 2, 3 and 4
102. In food processing, which of the following is/are used as emulsifiers?
1. Carboxymethyl cellulose
2. Ethylene diamine tetra acetate
3. Propylene glycol
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
103. To test the adulteration of milk, 3 ml of milk is boiled, then cooled to room temperature; and two or three drops of iodine solution is added. The milk turned blue. This indicates that the milk is adulterated with:
(a) Sodium bicarbonate
(b) Glucose
(c) Starch
(d) Urea
104. With reference to food preservation, which of the following statements is/are
correct?
1. Pasteurization means the heating of a food product to a sufficiently high
temperature to kill all the microorganisms present in it.
2. In the case of food preservation by sterilization by heat, foods high in acid are
very easily sterilized as compared to those low in acid.
Select the correct answer using the code given below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
105. Consider the following statements:
1. Pasteurization by heat is used in the processing of fruit juices.
2. Water glass is used in the preservation of eggs.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
106. With reference to irradiation for food processing, which of the following statements
is/are correct?
1. Cobalt-60 produces ionizing radiation, therefore it is used in the process of
irradiation of food.
2. Ultra-violet rays are the only ionizing radiation used for irradiation of food.
Select the correct answer using the code given below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
107. Among the following pairs of States, in India, major deposits of bauxite are concentrated in:
(a) Jharkhand and Odisha
(b) Assam and West Bengal
(c) Bihar and Haryana
(d) Punjab and Rajasthan
108. Doha Development Agenda, sometimes seen in news, refers to the affairs of:
(a) UNFCCC
(b) UNCTAD
(c) UNDP
(d) WTO
109. With reference to ‘monosodium glutamate’(MSG) used in processed foods, which of the following statements is/are correct?
1. MSG is not a naturally occurring substance.
2. MSG is a neurotransmitter.
Select the correct answer using the code given below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
110. In the parliamentary form of government, the
(a) executive is responsible to the legislature
(b) legislature is responsible to the executive
(c) judiciary is responsible to the executive
(d) legislature is responsible to the judiciary
111. The term ‘Ramsar Convention’, sometimes seen in news, refers to:
(a) conservation of forests
(b) conservation of wetlands
(c) reduction of greenhouse gas emissions
(d) controlling wildlife trafficking
112. In India, who heads the National Disaster Management Authority?
(a) Prime Minister
(b) Union Minister for Home Affairs
(c) Cabinet Secretary
(d) Secretary, Union Ministry of Environment, Forests and Climate Change
113. Natural gas is used for the production of which of the following?
1. Detergents and soaps
2. Electricity
3. Fertilizers for crops
Select the correct answer using the code given below:
(a) 1, 2 and 3
(b) 2 and 3 only
(c) 2 only
(d) 3 only
114. Which of the following parts of the human body can be used as a sample/samples for the presence of mercury?
1. Blood
2. Hair
3. Nail
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
115. Which of the following is/are known as ‘ozone depleting substance(s)’?
1. Black carbon
2. Halons
3. Oxides of nitrogen
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 2 only
(c) 1 and 3 only
(d) 1, 2 and 3
116. Consider the following statements:
1. All organochlorine pesticides (OCPs) enter the human bodies through food
chain only.
2. Some of the OCPs are categorized as Persistent Organic Pollutants.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
117. With reference to mercury pollution, which of the following statements are correct?
1. Once released into environment, mercury can turn into methyl mercury.
2. Mercury can enter the human body through inhalation.
3. As regards the entry and accumulation of mercury in humans, contaminated
fish is an important source.
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
118. Consider the following statements:
1. In India, the executive power of a State is vested in its Chief Minister.
2. Union Territories are administered by the President of India through an
Administrator appointed by him.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
119. The quantity of water required to produce 1 kg of which of the following foods is
largest?
(a) Barley
(b) Mutton
(c) Potato
(d) Wheat
120. What is ‘CRISPR-Cas9’ sometimes seen in the news?
(a) A targetted genome editing technique
(b) A cancer causing gene
(c) A robotic surgical procedure
(d) A technique of two-dimensional electrophoresis