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Q: 60% depletion in wildlife was caused in the last.
  • A. two decades
  • B. four decades
  • C. half - century
  • D. one score years
Correct Answer: Option B - According to the Ist para of the passage" Just over the past 40 years. We have seen an astonishing 60%. Decline in the size of populations of mammals, birds, fish, reptiles and amphibians. Hence, option (b) four decades (40 years) is correct answer.
B. According to the Ist para of the passage" Just over the past 40 years. We have seen an astonishing 60%. Decline in the size of populations of mammals, birds, fish, reptiles and amphibians. Hence, option (b) four decades (40 years) is correct answer.

Explanations:

According to the Ist para of the passage" Just over the past 40 years. We have seen an astonishing 60%. Decline in the size of populations of mammals, birds, fish, reptiles and amphibians. Hence, option (b) four decades (40 years) is correct answer.