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GENIUS RANK
BRAINLY STAR
MODERATER
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Answers
Answer:
1.The fire will stop because the oxygen supply is cut.
2. Because air is present in water.
Answer and Explanation:
a. The burning candle produces carbon dioxide and water in the form of water vapor. The glass becomes foggy due to this water. The flame goes out, of course, from a lack of enough oxygen in the glass. If the air in the glass cools down and its volume decreases, a negative pressure is created inside the glass.
b. When water is boiled, the heat energy is transferred to the molecules of water, which begin to move more quickly. Eventually, the molecules have too much energy to stay connected as a liquid. When this occurs, they form gaseous molecules of water vapor, which float to the surface as bubbles and travel into the air.
c. An earthworm breathes oxygen by absorbing it through its moist skin. It likes damp soil, but if the rain is very heavy, the oxygen in the water-logged soil may run out. Then the worm has to come up into the air to breathe.
e. Photosynthesis, respiration, and decomposition are processes that are responsible for maintaining the carbon dioxide–oxygen cycle. The process of photosynthesis in plants releases oxygen into the atmosphere.
f. A windmill is a machine that converts wind energy into mechanical energy. Windmills are used for grinding wheat and lifting water from the well. The energy made by windmills can be used in many ways. These include grinding grain or spices, pumping water and sawing wood. Modern wind power machines are used to create electricity.