B. It keeps the warm inside
Answer:
The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge, although the latter three are actually just extensions or combinations of the first three.
Answer:
A.
Explanation:
The leading zeros in c, d, and e are not significant. There is no zero in b. Just one left and all it's zeros are significant.
Answer:
A
Explanation:
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