How do social, economic, and political issues affect science?

the point in decision making when social, economic, and political concerns begin to affect science and how it is used to solve problems. Although scientific research identified the problem, it doesn't necessarily mean science will be used to solve it.

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.

Exposure to solar flares would be the correct answer