Which of the following will allow for the greatest reduction in an individual’s carbon footprint? a. replacing incandescent bulbs with compact fluorescent bulbs. b. bicycling instead of driving. c. eating vegetarian. d. none of the above.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

a chain link fence because there so tiny even my albino donkey can't get out