When clouds trap heat emitted from earth's surface, they are acting as
a. heat shield
b. magnet
c. greenhouse gas
d. satellite

When clouds trap heat emitted from Earth's surface, they are acting as a...

A.) Heat shield

B.) Magnet

C.) Greenhouse gas

D.) Satellite

(the one that is bolded is the correct answer...)

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.

multiply it by 5 in order for you to understand i cant give an exact answer.