Why did the Greeks raise crops and animals that did not need a lot of water and land?

your answer would be just capitalism.

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts