<span>Permeable means that a material is full of tiny, connected airspaces that allows water to seep through it.</span>
test tube
Explanation:
you state it is small and a test tube is the smallest container out of the answers you listed
Answer:
its atomic number
Explanation:
the mass number/atomic mass is how many protons and neutrons are combined in an element. But, the atomic number is just protons.
