Answer:
The attraction of water molecules to other substances, like soil or glass, is called adhesion. The cohesive forces between polar molecules are stronger than those between non-polar molecules, such as those in oil or syrup.
Blood clots will do this. Cutting off blood flow while also increasing blood pressure. Also, if the viscosity (thickness of the blood) is thick which will slow down the flow and cause the body to use more effort to pump blood.
Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply. At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature.
