Answer:
.When an object vibrates, it causes movement in surrounding air molecules. These molecules bump into the molecules close to them, causing them to vibrate as well. This makes them bump into more nearby air molecules.
Answer:
<h2>Gandhiji</h2>
Explanation:
The reason why people are inspired by Gandhiji is his philosophy of non-violence. He used non-violence to free India from British. ... He always told the people to do their work on their own without depending on others. He tried to eradicate the evil existing at that time — untouchability.
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The correct answer is: B. for exchange to occur, each seller must have a product that some buyer wants.
The coincidence-of-wants problem refers to a potential problem individuals might face when conducting a barter trade. In a barter trade system, one individual buys something from another individual by giving him or her another thing in return. An example of a barter trade between farmers would be trading five sheep for five goats. However, when conducting a barter trade, both sellers involved must have a product that some buyer wants. This refers to 'coincidence of wants'.
People talk, read, do homework/ study/ work, take naps, rest and do activities to keep themselves entertained!
