Give reasons for the following statements.
1. Deep sea divers and astronauts have to wear special suits.
2. We do not get crushed by the atmosphere.
3. Blood oozes out when there is a cut in our body.
4 A hollow iron ball floats on water, but an iron cube does not.
5. When a card is placed on a glass filled with water and are inverted
together, the water does not spill.
Answers
Answer:
because divers and astronauts want oxygen in underwater and in space and we know that there is no oxygen in both places
Answer:
1. As the depth of the sea increases, the pressure increases since pressure increases with depth. ... Hence, the deep sea divers wear special suits which protect them from extreme pressure of water. These suits are called diving suits
2. The pressure inside our bodies is equal to the atmospheric pressure and cancels the pressure from outside.
3. Blood oozes out when there is a slight cut on our body because the cut ruptures blood vessels along the skin. The blood in blood vessels flows with some pressure, so when blood vessls get injuried, blood oozes out of our body.
4.The boat is shaped so that it displaces more liquid than the weight of the materials that it is made of. The volume of the boat contains iron and air, and the overall density is less than that of water.
5. Keep the palm of your hand placed on the card and turn the glass upside down. The card remains attached to the rim of the glass and does not allow the water to flow out. This happens because the air pressure exerted on the card from underneath is greater that the weight of the water inside the glass.
Explanation:
I hope my all answer is write