How would the root distribute the seed ( the subject is science but they don’t have it)

Awatershed is a piece of land that drains water into a particular stream, lake, or river. which of the following factors often negatively impacts the water quality in a watershed? a.) wetlands b.) pollution c.) irrigation d.)rainfall

In russia which of these challenges affects the transportation of both petroleum products and other goods?

What is the border between layers a through f and layer g called?