Which activity will most likely discourage some people from purchasing a hybrid vehicle? paying premiums to recharge car batteries
O finding a battery-charging station near their job
O converting coal plants into other industrial plants
O allowing auto mechanics to recycle old batteries

i'd say that the moon rock is about 2.2 billion years old.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

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.