Which of the following statements about coal is true?

W) Over 50% of the coal mined in the United States is bituminous [by-TOO-muh-nuhs]

X) Lignite [LIG-nyt] has the highest energy content of all coal varieties

Y) Anthracite [AN-thruh-syt] contains approximately 25% carbon

Z) Lignite has a very low moisture content
W) OVER 50% OF THE COAL MINED IN THE UNITED STATES IS BITUMINOUS