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MCQs

Total Questions : 560 | Page 50 of 56 pages
Question 491. Photovoltaic' cells are solar cell, which are made of
  1.    Steel
  2.    Iron
  3.    Silicon
  4.    Metal
 Discuss Question
Answer: Option C. -> Silicon
Answer: (c).Silicon
Question 492. Tree crops and rubber plays an important role in
  1.    Incineration
  2.    Deforestation
  3.    Eutrophication
  4.    Afforestation
 Discuss Question
Answer: Option B. -> Deforestation
Answer: (b).Deforestation
Question 493. High humidity allows for rapid oxidation of SO₂ to form
  1.    Hydrochloric acid
  2.    Nitric Acid
  3.    Sulfuric acid
  4.    Aerosols
 Discuss Question
Answer: Option C. -> Sulfuric acid
Answer: (c).Sulfuric acid
Question 494. Ozone layer in stratosphere protect life from
  1.    Infrared radiation
  2.    Ultra-violet radiation
  3.    Light
  4.    Heat
 Discuss Question
Answer: Option B. -> Ultra-violet radiation
Answer: (b).Ultra-violet radiation
Question 495. According to current survey, both water cycle and rainfall patterns are:
  1.    Forming and shifting
  2.    Changing and shifting
  3.    Disturbing and changing
  4.    Moving and shifting
 Discuss Question
Answer: Option B. -> Changing and shifting
Answer: (b).Changing and shifting
Question 496. Greenhouse gases, having less than 1 percent quantity of the
  1.    Atmosphere
  2.    Hydrosphere
  3.    Biosphere
  4.    Troposphere
 Discuss Question
Answer: Option A. -> Atmosphere
Answer: (a).Atmosphere
Question 497. Developed nations are located in
  1.    Tropical Region
  2.    Poles
  3.    Sub tropical regions
  4.    Temperate regions
 Discuss Question
Answer: Option D. -> Temperate regions
Answer: (d).Temperate regions
Question 498. Industrial smog is also known as:
  1.    Black Smog
  2.    White Smog
  3.    Grey smog
  4.    Both a and c
 Discuss Question
Answer: Option D. -> Both a and c
Answer: (d).Both a and c
Question 499. Wind energy, working more actively on cloudy days and
  1.    Sunny days
  2.    Rainy seasons
  3.    Winters
  4.    Cold weather
 Discuss Question
Answer: Option B. -> Rainy seasons
Answer: (b).Rainy seasons
Question 500. How much fine particles are smaller?
  1.    2.5 micrometer
  2.    8 micrometer
  3.    1.5 micrometer
  4.    4 micrometer
 Discuss Question
Answer: Option A. -> 2.5 micrometer
Answer: (a).2.5 micrometer

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