A) It is used to provide 50% of U.S. electricity generated by power plants.B) The United States uses more than a quarter of the world’s supply of it.C) It makes up half of the fuel used in the United States.D) The United States has more natural gas than coal.
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A) Erosion. B) Water pollution.C) Air pollution. D) All of the above.
A) 1000. B) 600. C) 11. D) 30.
A) Because people regard it as a kind of cute and fluffy animal.B) Because people should not neglect the ugly and endangered animals.C) Because people do not know what a blobfish is.D) Because many people are against using cute animals.
A) Seaweed. B) Jelly.C) Shellfish and small crabs. D) Shrimps.