Which has been the primary source of energy in the most recent century?
(1 point)
O hydroelectric and other renewables
O wood and nuclear
O wood and coal
O petroleum, natural gas, and coal
D
The correct answer is:
O petroleum, natural gas, and coal
To determine the primary source of energy in the most recent century, we need to analyze the options given:
1. Hydroelectric and other renewables: Hydroelectric power and other renewable energy sources such as solar, wind, and geothermal have been growing in importance in recent decades. However, they were not the primary source of energy in the past century.
2. Wood and nuclear: While nuclear energy became significant in the latter half of the century, it was not the primary source of energy throughout the entire century, and wood is not a major energy source on a global scale.
3. Wood and coal: Wood and coal were historically significant energy sources in the 19th and early 20th centuries, but their usage has significantly decreased in recent decades, making them less likely to be the primary source throughout the most recent century.
4. Petroleum, natural gas, and coal: Petroleum, natural gas, and coal have been the primary sources of energy in the past century. These fossil fuels have been widely used for various applications including transportation, electricity generation, and industrial processes.
Based on the options provided, the correct answer is: O petroleum, natural gas, and coal.