Which two words or phrases in this excerpt from "the red wheelbarrow" by william carlos williams show that the wheelbarrow is an essential part of life on a farm? so much depends upon a red wheel barrow glazed with rain water beside the white chickens.

"so much depends upon a red wheel barrow"

Explanation:

This is the phrase that best shows how the red wheelbarrow is an essential part of life in the farm. In this excerpt, William Carlos Williams tells us that a lot of things depend on the red wheel barrow. This supports the idea that the wheelbarrow is used around the farm more many different jobs, and that this device is vital to the running of the farm.

that is true because that is something they fulfill for their work.