How are the west flowing rivers different from the east flowing rivers

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

How does human environment effect the biosphere