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:
The high growth of population in Terai region is because of migration from mountain and hill , growth of the population in the Terai region itself and immigration from outside i.e. from other neighbouring countries
It helps a plant survive,because not makes food for the plant.without food they can't live.just Luke we can't live without food
Answer:
Sharks swallowed and ate the bodies of African slaves that were thrown into the sea.
Explanation:
The middle passage is a stage in the triangular trade where Slaves from the African coasts were carried across the Atlantic ocean to South and North America. In the course of crossing this ocean, some slaves became so weak that they could no longer continue the journey. Some others died from the stress and starvation they experienced in the course of the journey. This set of people were usually thrown into the ocean by their captors and their bodies were readily swallowed by the sharks.
It is believed that some of these sharks followed the ships closely so as to readily grab the opportunity of swallowing the slaves when they were thrown aboard.
