A student has samples of five different types of metal. She measures the mass and volume of each sample. The measurements she took are in the table. Mass Type of Metal Volume (cm3) aluminum 14.6 5.4 iron 33.1 4.2 lead 35.2 3.1 6.1 10.6 magnesium 4.5 47.2 silver The student also has another piece of metal. She knows it is the same type of metal as one of her other samples, but she doesn't know which one it is. She finds that its mass is 33.5 grams and its volume is 3.2 centimeters. What type of metal is the unknown sample?

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.