Question

Use the graph to answer the question.

The vertical axis ranges from 0 to 100 in increments of 10. The horizontal axis lists dates from 1776 to 2018. The data is as follows. 1776: Wood, 100%. 1801: Wood, 100%. 1826: Wood, 100%. 1851: Wood, 90%. Coal, 10%. 1876: Wood, 65%. Coal, 34%. Petroleum, 1%. 1901: Wood, 20%. Coal, 61%. Petroleum, 3%. Natural gas, 3%. Hydroelectric, 3%. 1926: Wood, 5%. Coal, 65%. Petroleum, 20%. Natural gas, 7%. Hydroelectric, 3%. 1951: Wood, 2%. Coal, 38%. Petroleum, 40%. Natural gas, 16%. Hydroelectric, 4%. 1976: Wood, 20%. Petroleum, 45%. Natural gas, 29%. Nuclear, 2%. Hydroelectric, 4%. 2001: Coal, 25%. Petroleum, 35%. Natural gas, 20%. Nuclear, 18%. Hydroelectric, 1%. Other renewable, 1%. 2018: Coal, 15%. Petroleum, 35%. Natural gas, 30%. Nuclear, 12%. Hydroelectric, 1%. Other renewable, 7%. The values used in the description are approximate.

Which has been the primary source of energy in the most recent century?

(1 point)
Responses

wood and nuclear
wood and nuclear

hydroelectric and other renewables
hydroelectric and other renewables

petroleum, natural gas, and coal
petroleum, natural gas, and coal

wood and coal

Answer 1

The primary source of energy in the most recent century (from 1918 to 2018) has been petroleum, natural gas, and coal. In 2018, these three sources still held the majority of the energy distribution, with coal at 15%, petroleum at 35%, and natural gas at 30%.

Thus, the correct answer is:

**petroleum, natural gas, and coal**