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MCQs

Total Questions : 223 | Page 4 of 23 pages
Question 31. Trials of new vaccine begin in Mozambique in
  1.    2002
  2.    2004
  3.    2003
  4.    2000
 Discuss Question
Answer: Option C. -> 2003
Answer: (c).2003
Question 32. Researchers think that it will be a succes,if the vaccine worked on half of the population of
  1.    America
  2.    Africa
  3.    Asia
  4.    Europe
 Discuss Question
Answer: Option B. -> Africa
Answer: (b).Africa
Question 33. What is the percentage of irrigated land in India affected by salinization?
  1.    20-22%
  2.    20-29%
  3.    20%
  4.    30%
 Discuss Question
Answer: Option B. -> 20-29%
Answer: (b).20-29%
Question 34. What protects crops by killing off insect pests?
  1.    Pesticides
  2.    Fertilizers
  3.    acids
  4.    All of these
 Discuss Question
Answer: Option A. -> Pesticides
Answer: (a).Pesticides
Question 35. Which two policies were adopted to eradicate the malaria?
  1.    To Drain the marshes
  2.    Use of DDT
  3.    Both a and b
  4.    None of these
 Discuss Question
Answer: Option C. -> Both a and b
Answer: (c).Both a and b
Question 36. What is the only way to keep out the malaria mosquito carrier at night?
  1.    By using Net
  2.    By using Drugs
  3.    By using Prophylactic Drugs
  4.    All of these
 Discuss Question
Answer: Option A. -> By using Net
Answer: (a).By using Net
Question 37. The 30million dollar fun is inadequate to deal 300 million cases of malaria in
  1.    Asia
  2.    Africa
  3.    Middle East
  4.    America
 Discuss Question
Answer: Option B. -> Africa
Answer: (b).Africa
Question 38. Mostly people are affected by the most dangerous of the four malaria parasite known as
  1.    Plasmodium falciparum
  2.    Plasmodium ovale
  3.    Plasmodium vivax
  4.    Plasmodium knowlesi
 Discuss Question
Answer: Option A. -> Plasmodium falciparum
Answer: (a).Plasmodium falciparum
Question 39. A hard crust of salt is deposited on the surface during which process
  1.    eutrophication
  2.    Aeration
  3.    Salinization
  4.    Drainage
 Discuss Question
Answer: Option C. -> Salinization
Answer: (c).Salinization
Question 40. Which pesticide killed many other organisms instead of only mosquitoes to eradicate malaria?
  1.    DDT
  2.    Fertilizers
  3.    Insecticides
  4.    Pesticides
 Discuss Question
Answer: Option A. -> DDT
Answer: (a).DDT

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