Why is trade necessary? explain with example.

I think it's necessary because people acquire the needs that they you don't have like for example your friend has a banana and you have a mango your friend wants that mango and you want that banana so you will trade each of your goods to each other and you will acquirewhat you wanted

is there a year set? the question is incomplete

sir frederic attributed inaccuracies to schemas. memory reconstruction is one part actual events and one part personal schema, which can result in inaccuracies when memories are reconstructed.