Question

In the German war against France in 1870, the Germans besieged the city of Paris. the only way for Paris residents To contact the world is to use balloons filled with hydrogen gas. Why were the balloons able to fly in the Air? o Because of the strong winds that swept in the time of its flying. o Because the cloth from which the balloons were made was very delicate and light. o Because hydrogen density is less than air density. o Hydrogen is a flammable gas.

Answer 1

Answer:

bcoz hydrogen density is less than air density

Explanation:

As hydrogen is less dense than air, so the air pushes up on the balloon harder than gravity is pulling it down, and the balloon tries to move up! So just like wood float on water, hydrogen balloons float on air.