Petroleum and Natural Gas

Q. Which of the following countries are the major producers of petroleum?

1. Iran
2. India
3. USA
4. Saudi Arabia
5. Germany
6. Japan
7. Algeria
8. Qatar

Q. is(are) also famously called black gold due to its value.

1. Petroleum
2. Coal
3. Fossil fuels
4. Firewood

Q. is(are) also famously called black gold due to its value.

1. Petroleum
2. Coal
3. Fossil fuels
4. Firewood