Polylactic acid is the correct answer
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Earthquakes are measured using instruments called seismometers, that detect the vibrations caused by seismic waves as they travel through the crust. Also, laser beams can be used
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im sorry but this question doesnt make sense
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I hope this link helps you.
Explanation:
http://astronomy.swin.edu.au/cosmos/P/Phases
3. they make up larger compounds like fats and amino acids, would be the correct answer.