State whether the given statement is True or False: 4
1. The fluffy texture of bread is due to the release of water( )
2. Dinosaurs are endangered animals( )
3. Liquids do not exert pressure on the object immersed in them( )
4. Air exerts pressure on the walls of container( )
Answers
Answer:
1. True
2. False
3. True
4. False
1) False
2) False
3) True
4) True
1) The carbohydrates (sugar, starch) that occur naturally in the flour are broken down by yeasts forming alcohol and carbon-dioxide. The released carbon-dioxide rises and forms gas bubbles on the surface of dough. ... The release of carbon dioxide during fermentation makes the bread soft and fluffy.
2) Dinosaurs became endangered, then extinct. Human activity can also contribute to a loss of habitat. Development for housing, industry, and agriculture reduces the habitat of native organisms. This can happen in a number of different ways. Development can eliminate habitat and native species directly.
3/4) Air exerts pressure on the walls of the container. All liquids exert equal pressure at all points at the same depth. Pressure exerted by a given force increases with an increase in area. Liquids do not exert pressure on the object immersed in them.