B
Meniscusity the convex or concave upper surface of a column liquid, the curvature of which is caused by surface tension
Answer:
Q1) Distillation relies on evaporation to purify water
Explanation:
contaminated water is heated to form steam. inorganic compounds and large non-volatile organic molecules do not evaporate with the water and are left behind. The steam then cools and condenses to form purified water
Only one. variable to get a reliable results you only have to change one.
The answer is d I think. Don’t quote me if I’m wrong