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Q: .
question image
  • A. direct
  • B. inverse
  • C. equal
  • D. adverse
Correct Answer: Option A - According to the passage, nano particles are in direct proportion to size to town Hence option (a) is correct.
A. According to the passage, nano particles are in direct proportion to size to town Hence option (a) is correct.

Explanations:

According to the passage, nano particles are in direct proportion to size to town Hence option (a) is correct.