They do have a fixed shaed because they are crystals. theye are very very tiny, but salt is crystals in the shape of cubes, and sugar has completely irregular crystals. salt can be mined for example - rocks of pure salt are solid, no? :)
Answer:
A.
Explanation:
A change of position over time.
B is a vector and C is a distance.
2. B because it has a lower activation energy.
idk because you have no picture with the lines on it
