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The meaning of Geography  Scientific study of the earth as a home of man.  Study of interrelationship on natural and human phenomena on the earth’s surface. Environment  The surroundings  All external conditions surrounding an organism…

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 help enlarge the chest cavity. They…
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