Answer:
Forbidden.
Explanation:
When something is forbidden, it is not allowed.
Barter system- A method of exchange when no money is involved.
B and C can't be the answers because they are not exchanging anything.
D can't be the answer either because there is money involved.
So your answer is A) You trade an apple for a banana at school. because you are exchanging something with someone for something else thats not money.
Hope this Helps!!
Answer:
il is measured in barrels, which is equal to 42 US gallons or 159 liters.
The US has the 10th largest oil reserve in the world. ...
The US consumes more oil than any other country -- 1.85 billion barrels per day.
Explanation:
