Explanation:
A concave meniscus,(normally seen) occurs when the molecules of the liquid are attracted to those of the container. This occurs with water and a glass tube. A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container, as with mercury and glass.
True: Friction depends on the types of surfaces involved and how hard the surfaces push together.
Answer:
Eletromagnetic radiation which is also known as visible light.
Explanation:
