A50- ml sample of water has a mass of 5g. what is the density of water?

0.1g/ml

Explanation:

0.1 g/ml = 100kg/m³

The difinition of density is mass per volume.

⇒So you have 5 grams of water which occupies a volume of 50 milliliters. This gives us : 5g / 50ml = 0.1g/ml

In Si- units 0.1g/ml = 100kg/m³

i look it up online and i'll tell you

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.