When you ________ (turn off) the lights, you save energy.
turn off
When people ________ (recycle) paper, people save trees.
recycle
When she ________ (use) public transportation, she reduces air pollution.
uses
When we ________ (plant) a tree, we combats deforestation.
plant
When people ________ (use) a cloth bag, people decreases plastic waste.
use
