HLP PLZ. explain why you need to use more than one property to identify a mineral.

What if it is did darwin used to support his theory of evolution

How many moles are in 1.26*10^24 particles in significant figures

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.