David Bushnell is associated with the invention of

Options :
  1. Helicopter
  2. Submarine
  3. Tank
  4. Missile

Answer and Explanation :-

Answer: Option 2


Turtle submarine is invented by David Bushnell.

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We shouldn't have been so scornful we should have had compassion. But compassion takes work, and we were young.
-Margaret Atwood The Year of the Flood