Answer:
Each year 100 million people in the U.S. donate an estimated three hours per week to help a charitable cause. That works out to about 7.5 million full-time volunteers that help a good cause.
Explanation:
Geography is a field of science that deals with studying the earth's surface, climate, continents, countries, people, industries, and resources. It has two branches: the physical geography and the human geography. Physical geography deals with studying the natural environment, its characteristics and how it works while the human geography deals with studying the people and their total interaction with the environment and their culture, history, traditions, and economy.
Many Greek city-states encouraged migration to areas outside of Greece during the 8th and 7th centuries B.C. in order to <span>ease discontent caused by a maldistribution of land and an increase in poverty. The correct option among all the options that are given in the question is the fourth option or option "D". </span>