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MCQs

Total Questions : 216 | Page 1 of 22 pages
Question 1. Which of the following is the correct order for a simple food chain?
  1.    grasshopper, sparrow, grass, hawk
  2.    grass, grasshopper, sparrow, hawk
  3.    hawk, sparrow, grass, grasshopper
  4.    grass, hawk, grasshopper, sparrow
 Discuss Question
Answer: Option B. -> grass, grasshopper, sparrow, hawk
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 2. Symbiosis is a relationship between the members of
  1.    same species
  2.    two species
  3.    different species
  4.    equal species
 Discuss Question
Answer: Option C. -> different species
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3. Considering the Earth's ecosystem, the consumers are classified as
  1.    autotrophs
  2.    heterotrophs
  3.    tertiary autotrophs
  4.    secondary autotrophs
 Discuss Question
Answer: Option B. -> heterotrophs
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4. The process in which inorganic nutrients are enriched with water is called
  1.    industrialization
  2.    pollution
  3.    eutrophication
  4.    contamination
 Discuss Question
Answer: Option C. -> eutrophication
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 5. Burning of petroleum produces
  1.    nitrogen dioxide
  2.    ammonium dioxide
  3.    sulphur dioxide
  4.    carbon dioxide
 Discuss Question
Answer: Option C. -> sulphur dioxide
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 6. The hydrocarbons (alkanes and alkenes), oxides of nitrogen (NO, NO2) and Sulfur (SO, SO2, SO3) and fluorine (F2) are released by the
  1.    fertilizer industries
  2.    thermal industries
  3.    textile industries
  4.    steel industries
 Discuss Question
Answer: Option A. -> fertilizer industries
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 7. The lakes and forests are best classified as examples of
  1.    artificial ecosystem
  2.    natural ecosystem
  3.    natural biosphere
  4.    artificial biosphere
 Discuss Question
Answer: Option B. -> natural ecosystem
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 8. The minerals are used as nutrients by
  1.    decomposer
  2.    producer
  3.    consumer
  4.    autotrophs
 Discuss Question
Answer: Option B. -> producer
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 9. The main component of many biomolecules is
  1.    carbon
  2.    sulphur
  3.    potassium
  4.    nitrogen
 Discuss Question
Answer: Option D. -> nitrogen
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 10. Where does Rhizobium live?
  1.    animal stomach
  2.    human intestine
  3.    animals brain
  4.    root nodules
 Discuss Question
Answer: Option D. -> root nodules
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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