Staff Nurse Entrance Questions and Answers

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Q31
Which pigment protects plants from UV damage?
  • A Chlorophyll
  • B Xanthophylls
  • C Phycocyanin
  • D Carotenoids
Answer: Option D
Q32
Which is not dangerous for life?
  • A Nuclear blast
  • B Deforestation
  • C Biopollutants
  • D Ozone layer
Answer: Option D
Q33
Pollution indicator plants
  • A are resistant to pollution
  • B can purify the atmosphere
  • C are very sensitive to pollution
  • D are very sensitive to pollutants
Answer: Option C
Q34
A sewage treatment process in which a portion of the decomposer bacteria present in the waste recycled into the beginning of the process is called
  • A Activated sludge treatment
  • B Primary treatment
  • C Tertiary treatment
  • D Cyclic treatment
Answer: Option A
Q35
Warm ocean surge of Peru Current recurring every 5-8 years or so in the East Pacific of South America is widely known as
  • A Gulf stream
  • B Aye Aye
  • C El Nino
  • D Mangox
Answer: Option C
Q36
Acid rain is caused due to increase in concentration of
  • A SO2 and NO2
  • B CO and CO2
  • C CO and SO3
  • D Ozone and dust
Answer: Option A
Q37
Smog is a combination of
  • A Fire and water
  • B Smoke and fog
  • C Water and smoke
  • D Air and water
Answer: Option B
Q38
Maximum threat to the world is from
  • A global warming
  • B ozone hole
  • C water pollution
  • D soil erosion
Answer: Option B
Q39
BOD of a pond is related to in per unit volume of water.
  • A All the plants
  • B All the nektons
  • C All the microbes
  • D All the animals
Answer: Option C
Q40
The effect of pollution is first and most marked on
  • A Natural flora of a place
  • B Natural balance of our environment
  • C Natural geochemical cycles
  • D All the above three
Answer: Option A

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