What is this article about?

not concrete, existing in thought or as an idea but not having a physical or concrete existence

its duck

me jerry

explanation:

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.

attitude toward the subject implied in a literary work.

serious at times, angry, impassioned, and optimistic, but most of all urgent