Voltaire, Montesquieu, Diderot, and Condorcet were philosophers of the French Enlightenment.
Answer: The study of ecosystem is important for Environmental Conservation, Resource Allocation, reduce pollution and destruction of ozone layer. It provides information about the benefits of environment and judicious use of Earth's resources in ways that make the environment healthy for future generations.
Explanation:
Governmental Terrorism is the answer!
Many small city states developed in ancient Greece largely because of Greece's mountainous terrain. All of the large mountains and chains of islands separating the different section's of Greece's land made it much easier to create multiple small city states rather than a centrally united kingdom.