Comparative and experimental investigations are two of three scientific investigations, the other is descriptive investigations.
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B! The strongest characteristics will survive when the weak ones won't
Answer:
List three ways of reducing friction. 1.Polishing the rough surface. 2.Providing all bearings or wheels between the moving parts of a machine or vehicles reduce friction and 3.allow smooth movement as rolling friction is less than sliding friction.
Answer:
D
Explanation:
because trees take in carbon dioxide and produce oxygen.
Answer:
Nick Boyle as 270 pounds is higher than others!
Explanation:
