KhloodAhmed
20.02.2021 •
Geography
Materials:
A clean dry transparent glass jar (e.g., a jam bottle or a bigger bottle) Warm water Ice cubes Metal lid or a piece of metal (tray) to cover the mouth of the bottle.
steps : Fill a jar with 2 inches (5 cm) of warm water and stir. Then light a match, blow it out and quickly drop it into the jar. Immediately place an ice-filled metal tray or metal lid with ice on rop. Observe what happened for a couple of minutes. Lift the metal lid off the mouth of the Jar and observe what happens.
Questions:
(1) Why did you fill the jar with warm water and not cold water?
(2) What is the purpose of dropping a match that gives out smoke? What other materials can you use instead of a match?
(3) What is the purpose of placing a metal lid or tray with ice on top?
(4) What did you see inside the jar after a couple of minutes? Explain what happened inside the jar
(5) If the experiment were repeated.without a match producing smoke what would you expect to see? No thick cloud
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Ответ:
The economic system with the widest selection of consumer goods is the market economy.
Explanation:
The market economy is an economic system in which all of the business is private ownership, while the government has only regulatory authority. In this economic system, the production of goods is in accordance with the demand from the consumers. The competition is very high, thus for a business to succeed and persist needs to make products with the highest possible quality for the lowest possible price.
One other characteristic of the market economy is that every business has total freedom when it comes to choosing what to produce and what amount to produce it. The businesses don't produce equally for all areas where they deliver their products, but instead, there are big differences in the distribution. This is based on how much of their products are in demand in a particular area, where there is higher demand there is bigger delivery and vice versa.