The structure depicted in the block diagram below is a with the rocks exposed in the central region.

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck

rain is the best answer

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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.