(Papers) : IIT Madras  HSEE Papers-2017 (Environment and Ecology)

Q.127 The silent valley forest in Kerala State falls in the category of:
[A] Tropical deciduous forest
[B] Tropical rain forest
[C] Tropical Scrub forest
[D] Evergreen coniferous forest

Q.128 The ‘Blue Baby Syndrome’ ( methamoglobinemia) in infants is caused by
[A] Nitrate pollution of ground water 
[B] Arsenic pollution of ground water
[C] Fluoride pollution of ground water 
[D] Chromium pollution of ground water

Q.129 Salt water intrusion in coastal region is caused by
[A] Dropping water table 
[B] Diminishing reservoir capacity
[C] Dropping river flows 
[D] Climate change

Q.130 Who amongst the following scientists was awarded the ‘Nobel Peace Prize’ for contribution to Green Revolution
[A] MS Swaminathan 
[B] Norman Borlaug
[C] Kailas Nath Kaul 
[D] Sewall Wright

Q.131 Biofuels are classified as renewable source of energy because:
[A] No new Carbon Dioxide is being released to the atmosphere during its usage
[B] The source of biofuel is not fossils
[C] The production of biofuel uses only solar energy
[D] It is highly preferred over petrol or diesel

Q.132 The ‘flow of energy’ in an ecosystem is:
[A] Unidirectional 
[B] Bidirectional
[C] Multidirectional 
[D] Cyclic

Q.133 The species richness of an  ecosystem is called as
[A] Ecosystem richness 
[B] Biodiversity
[C] Bio-enrichment 
[D] Forest

Q.134 ‘Sound’ becomes hazardous noise pollution at decibels
[A] Above 50 
[B] Above 80 
[C] Above 100 
[D] Above 130

Q.135 In an ecosystem, bacteria are the
[A] Producers 
[B] Primary consumers
[C] Secondary consumers 
[D] Decomposers

Q.136 Taj Mahal is under environmental degradation threat due to
[A] Sulphur Dioxide 
[B] Carbon Monoxide
[C] Carbon Dioxide 
[D] Water Vapour

Q.137 Use of microorganism metabolism to remove pollutants from soil/water is known as
[A] Bio-augmentation 
[B] Bio-remediation
[C] Bio-magnification 
[D] Bio-mechanization

Q.138 The highest per capita emitter of Carbon Dioxide is
[A] United States of America 
[B] China
[C] India 
[D] Qatar

Q.139 Which of the following Indian States/Union Territory has the maximum percentage of mangrove forests cover?
[A] Gujarat 
[B] West Bengal
[C] Kerala 
[D] Andaman and Nicobar

Q.140 In an area, where DDT (dicholorodiphenyl trichloro ethane) has been used extensively, the bird population declines significantly because
[A] Birds could not survive due to lack of food
[B] Many of the eggs laid by birds did not hatch
[C] Birds stopped laying eggs
[D] Earthworms in the area got affected

Q.141 Most hazardous metal pollutant of the automobile exhaust is
[A] Lead 
[B] Mercury 
[C] Cadmium 
[D] Copper

Q.142 Pollutants that have long lasting ill-effects on the environment are
[A] Smoke and Chimney 
[B] Sulphur Dioxide
[C] Pesticides 
[D] Carbon Monoxide

Q.143 Biochemical Oxygen Demand (BOD) in river water
[A] Increases when sewage gets mixed with river water
[B] Remains unchanged when algal bloom occurs
[C] Has no relationship with the concentration of oxygen in the water
[D] Indicates the quantity of salmonella present in the water

Q.144 The Cauvery river water sharing agreement was
[A] Signed in 1892 and amended in 1924
[B] Signed in 1924 and amended in 2000
[C] Signed in 1947 and amended in 1996
[D] Signed in 1956 and amended in 2015

Click Here for Official PDF

Courtesy: CBSE