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UPSC Prelims 2023Question 69Science & Technology

'Aerial metagenomics' best refers to which one of the following situations?

Options

  1. (a)Collecting DNA samples from air in a habitat at one go
  2. (b)Understanding the genetic makeup of avian species of a habitat
  3. (c)Using air-borne devices to collect blood samples from moving animals
  4. (d)Sending drones to inaccessible areas to collect plant and animal samples from land surfaces and water bodies

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