Answer:
Water can dissolve salt because the positive part of water molecules attracts the negative chloride ions and the negative part of water molecules attracts the positive sodium ions. The amount of a substance that can dissolve in a liquid (at a particular temperature) is called the solubility of the substance........ I hope you got the answer clearly
Answer: Central intelligence Agency (CIA)
Explanation:
Central intelligence agency is a civilian foreign agency service of the United States of America, which have been given the responsibility of gathering and analyzing national security information from around the world through it's source; humans or husn intelligence.
Under feudalism, lords were responsible for ruling different regions of a country.
These regions were given as a fief to the Lord by the King or a higher rank Lord in return for their loyalty and service.
Depending on the kingdom, this alliance between the King and his vassal could be inherited. If the king needed so, the Lord had to pay service of arms, gathering knights and soldiers for war. They also had to protect the land given and the people living in it for the King.
This was necessary for kings in Middle Ages because they didn’t have enough power and an army to protect their realms from invasions and raids. Lords were the ones who had private armies, so they could actually protect the country. This is why they became responsible for ruling different regions.
You can learn more about feudalism in the link below:
brainly.com/question/20082482
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The economic term for this is "opportunity cost".
Opportunity cost is the cost of the options that one is not choosing. This means that if one has to choose between A and B, opportunity cost is the cost of "giving up B" when one chooses A.
