Question

Dinesh's village is flooded with water due to heavy rain, so he planned to make a boat for transportation. Which of the following material should he use to make a boat?
Glass, wood, marble, rock.

Answer 1

Materials with density less than water float and materials with density more than water sinks.
Wood has a density less than water. But glass, rock, and marble have more density than water.
So, the boat should be made from wood to make it float on the water.