Answer:
Profession is the means to earn a living. You adopt a profession of your choice and then earn your livelihood around it. Training is required for you to succeed in any profession. You have to sharpen your skills and alert yourself to do your tasks correctly.
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This would be a perfect example of the system of barter as you are trading one book for the other. You can see from here what barter is, a trading system which involves direct exchange of goods without some kind of medium of exchange, for example money. Services can also be traded this way.
The correct answer is cognitive dissonance reduction
Answer: Disadvantages are that bartering frequently requires much time and hassle and that goods are often not readily divisible, meaning that swapped goods have to be basically equal in value if a trade is to occur.
Explanation:
