Final answer:
Hydrophobic substances have poor affinity for water, while hydrophilic substances dissolve easily in water.
Step-by-step explanation:
Hydrophobic substances have poor affinity for water while hydrophilic substances dissolve easily in water.
Nonpolar substances, such as oils and fats, are hydrophobic and do not interact well with water, while polar substances, such as ions and polar molecules, are hydrophilic and readily interact with water.
A good example of a hydrophobic substance is oil, which does not dissolve in water. On the other hand, a hydrophilic substance like salt readily dissolves in water.