(Measure at the bottom of it.)
The meniscus is concave |_| when the liquid wets the surface. When it doesn't wet the surface (mercury is an example), the meniscus is convex|line on top|. Poor drawings but that's the best I can do. Water, for example, is called adhesive and mercury is cohesive.
If a rocket is thought to be unstable, which is of the fallowing changes is most likely to improve the stability? Adding tail fins, Adding body fins, adding a nose fin, or removing all the fins,