anyone who will answer my question I will mark him or her answer as brainliest
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anyone who will answer my question I will mark him or her answer as brainliest
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Explanation:
a. The statement is justified as hot air balloons work on the principle of air expansion. The air inside the balloon is heated using a burner, which causes it to expand. As a result, the volume of air inside the balloon increases, and its density decreases, making it less dense than the surrounding air. This difference in density causes the balloon to rise and float in the air.
b. The statement is justified as the Bernoulli's principle describes the relationship between the speed of a fluid and its pressure. According to this principle, the faster-moving air produces less pressure than the slower moving air. When an airplane moves through the air, the shape of its wings causes the air to move faster over the top of the wing than underneath it. This creates an area of low pressure above the wing and an area of high pressure below it, resulting in lift.
c. The statement is justified as drinking straws work on the principle of atmospheric pressure. When you suck on a straw, the air pressure inside the straw decreases, creating a vacuum. This low-pressure area inside the straw pulls the liquid up, allowing you to drink it. The atmospheric pressure outside the straw pushes the liquid up into the straw to fill the vacuum created by your mouth.
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