1) The Grand Canyon is one of the most famous natural wonders in the world. a) True b) False 2) The Grand Canyon was formed by the Mississippi River a) True b) False 3) The Grand Canyon is approximately 277 miles long. a) True b) False 4) The canyon's deepest point is about 1,500 feet deep a) True b) False 5) The colors of the rocks change during sunrise and sunset. a) True b) False 6) The Great Barrier Reef is located off the coast of Queensland, Australia a) True b) False 7) It is the smallest coral reef system in the world. a) True b) False 8) The Great Barrier Reef stretches over 1,400 miles. a) True b) False 9) There are about 2,900 individual reefs and 900 islands within the Great Barrier Reef a) True b) False 10) The reef is home to over 1,500 species of fish and around 400 types of coral a) True b) False

True/False 6 grade

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