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Star formation occurs most rapidly in the spiral arms, where the density of interstellar matter is highest.
It is strong enough to penetrate through flesh but not bone so we can see if there are fractures or breaks in our skeleton
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what? i cant understand you pls translate in English
Answer:
Density is an important physical property of matter. It reflects how closely packed the particles of matter are. When particles are packed together more tightly, matter has greater density.
Explanation:
