Minerals are identified and sorted by different characteristics. Luster is one way to sort minerals into different types. What is a mineral’s luster? (SC.4.E.6.2) A. the way that light reflects from its surfaceb.
B. the color that it makes when rubbed on a tilec.
C. the mineral’s elements and their arrangementd.
D. the way that it breaks when you strike it with a hammer

One simple way to classify luster is based on whether the mineral is metallic or non-metallic. Minerals that are opaque and shiny, such as pyrite, have a metallic luster. Minerals such as quartz have a non-metallic luster. Luster is how the surface of a mineral reflects light.

Explanation:

the correct answer is ( hypoglycemia ); good luck

explanation:

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."