Livestock emissions can lead to acid rain.
True or false ?

cardiovascular system

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answer; i believe the correct answer is (replication is not conservative);

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.