Environmental Issues Set 4

All India Pre Medical Test (AIPMT)

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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Environmental Issues Set 4

Q1 | In the water of flooded river what type of change is seen in BOD?
  • Increase
  • Decreases
  • Remains same
  • Drastic decrease
Answer: Increase
Q2 | The death of fishes due to Eutrophication is because of
  • Increase O2 content
  • Decrease CO2 content
  • Decrease O2 content
  • ) Increase CO2 content
Answer: Decrease O2 content
Q3 | When huge amount of sewage is dumped in a river the BOD will
  • Increase
  • Decreases
  • Remains same
  • Drastic decrease
Answer: Increase
Q4 | The Montreal protocol was made effective from..
  • 1987
  • 1989
  • 1976
  • 1986
Answer: 1989
Q5 | What do you understand by greenhouse effect?
  • Increase in temperature due to increase in O2 concentration of the atmosphere
  • Decrease in temperature due to decrease in O2 concentration of the atmosphere
  • Increase in temperature due to increase in CO2 concentration of the atmosphere
  • Decrease in temperature due to decrease in CO2 concentration of the atmosphere
Answer: Increase in temperature due to increase in CO2 concentration of the atmosphere
Q6 | In which sphere of atmosphere the ozone layer is seen?
  • Troposphere
  • Stratosphere
  • Homosphere
  • Thermosphere
Answer: Stratosphere
Q7 | The release of phosphates and nitrates in lakes and ponds leads to
  • Reduce algal growth
  • Eutrophication
  • Nutrient enrichment
  • Both B and C
Answer: Both B and C
Q8 | Deforestation has an alarming effect on
  • Soil erosion
  • increase in grazing area
  • weed control
  • All of these
Answer: Soil erosion
Q9 | Amruta Devi Bishnoi Wild life Protection award has recently instituted for
  • Extraordinary courage and dedication in protecting wildlife
  • Extraordinary courage and dedication in protecting plants
  • Extraordinary courage and dedication in protecting wild animals
  • Extraordinary courage and dedication in Protecting Environment
Answer: Extraordinary courage and dedication in protecting wildlife
Q10 | Which is the main factor of water pollution?
  • Ammonia
  • Smog
  • detergents
  • None of these
Answer: None of these
Q11 | Which one of these has highest levels of DDT deposition?
  • Eel
  • Phytoplankton’s
  • Sea gull, Eagle
  • Crab
Answer: Sea gull, Eagle
Q12 | Exhaust of motor vehicles produces pollutants like
  • CO
  • Hydrocarbons
  • SO2
  • All of these
Answer: All of these
Q13 | The stress reaction is caused by
  • Air pollution
  • Nuclear pollution
  • Water pollution
  • Noise pollution
Answer: Noise pollution
Q14 | Deforestation may reduce the chances of…. (CBSE1990)
  • Rain fall
  • Frequent cyclones
  • Erosion of surface soil
  • Frequent landslide
Answer: Rain fall
Q15 | Most severe environmental hazard to mankind is due to…. (DPMT1986)
  • Air pollution
  • Radioactive pollution
  • Water pollution
  • Noise pollution
Answer: Radioactive pollution
Q16 | Which is biodegradable pollutant?
  • Mercury salt
  • Polythene bags
  • Domestic sewage
  • Aluminum canes
Answer: Domestic sewage
Q17 | According to government of India’s new policy what should be the level of aromatic hydrocarbons of the concerned fuel?
  • 40%
  • 30%
  • 42%
  • 35%
Answer: 42%
Q18 | What would have been the temperature of the earth without green house effect?
  • -15° C
  • -28° C
  • -18°C
  • -10°C
Answer: -18°C
Q19 | Which is the native place of Bishnoi community?
  • Bikaner
  • Jodhpur
  • Jamshedpur
  • Jaipur
Answer: Jodhpur
Q20 | Formation of ozone hole is maximum over. .CBSE1997
  • Antarctica
  • Europe
  • Africa
  • India
Answer: Antarctica
Q21 | The main problem arose due to green revolution is…
  • Over production of food
  • Water logging
  • Soil salinity
  • Both B and C
Answer: Both B and C
Q22 | What is importance of catalytic converter?
  • They increases average of the vehicles
  • They reduces emission of harmful gases
  • They convert CO and nitric oxide into CO2 and H2O
  • Both B and C
Answer: They reduces emission of harmful gases
Q23 | With the help of ____ SO2 is removed from the industrial exhaust?
  • Electrostatic precipitator
  • Solvents
  • Scrubber
  • None of these
Answer: Scrubber
Q24 | How much forest area is lost in tropics and temperate regions respectively?
  • 40%, 1%
  • 1%, 40%
  • 33%,40%
  • 40$,33%
Answer: 40%, 1%
Q25 | What is the rise in the temperature of earth since last three decades?
  • 0.6° C
  • 0.5°
  • 6°C
  • 5°C
Answer: 0.6° C
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