Answer the questions:
1. Petroleum was used in ancient times for making
2. Petroleum comes from the remains of
plants and animals.
dinosaurs and other animals.
3. Oil can also contain a lot of sulfur.
The author doesn’t say.
4. The modern history of oil started in
5. Edwin Drake drilled the first oil well in the US in
6. John D. Rockefeller entered the oil business in
the early 1816.
the early 1860s.
7. The company Standard Oil was divided into