The petroleum is more superior than coal and wood, mainly because petroleum is easier to transport, and way more efficient. Petroleum is used for fire, and of course in cars which every country has and every car needs petroleum.
Answer: The Civil Rights Act of 1964, which ended segregation in public places and banned employment discrimination on the basis of race, color, religion, sex or national origin, is considered one of the crowning legislative achievements of the civil rights movement
People started migrating to the cities because the cities provided the people with better opportunities to lead a prosperous life.
