A class has two yellow powders. They measured some properties of each of the powders. Students used the samples and recorded color, mass, density (a measure of mass per volume), and tested to see if the powders dissolved in water and if they burn in air. Their data are summarized in the table below. Properties of Powders
Color Mass (grams) Density
(grams per cubic centimeter) Dissolves in Water Burns in air
Powder 1 Yellow 12.6 1.56 Yes Yes
Powder 2 Yellow 18.2 1.89 Yes No
Which measurement cannot be used to determine whether the two powders are the same substance?

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.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.