A condition in which bones become weak and brittle.
The body constantly absorbs and replaces bone tissue. With osteoporosis, new bone creation doesn't keep up with old bone removal.
thus 2) is correct.
a disease in which bone tissue becomes breakable and thin.
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A controlled variable is essentially what is kept the same throughout the whole experiment.
Answer:
you would have 2.4 or 2 2/9
Explanation:
all you have to do is divide 9 and 22
Whether water is frozen, in a gaseous state, or is a liquid, it is still H2O. So the chemical composition does stay the same.
Answer:
See below.
Explanation:
It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's.
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