The form of money that is inconvenient to have, but does the best job at controlling spending is known as the commodity money.
<h3>What is money?</h3>
It should be noted that money simply means a medium of exchange and a means of payment.
In this case, the form of money that is inconvenient to have, but does the best job at controlling spending is known as the commodity money. It's value is based on the commodity that's it's made from.
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Answer: Trade is one of the main reasons Ancient Egypt prospured and survivred. The Nile was the center of all trade of Egypt and practically made Trade possible. Because of Trade the Nile River had a much greater value and purpose than just farming. Trade also protected Egpyt from a defense standpoint many powers during Egypts time didnt attack Epgpt beacuse they new if they attacked Egypt they would lose critical recources that they get from Egypt.
Answer:
Statement that is true about electromagnetic and mechanical waves is:
Option B: Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium to travel.
Explanation:
'Electromagnetic' waves do not need any medium to travel whereas 'mechanical waves' need a medium or matter for transmission. Electromagnetic waves are produced by the 'vibrations' of the charged particles. They can even travel in vacuum.
On the contrary, mechanical waves are caused by the 'wave amplitude'. Mechanical wave can travel in solid, liquid and gas and are considered to be periodic disturbance.
Thus, Option B is the most statement apt explaining the difference between electromagnetic and mechanical waves.
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