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Match each section of the passage to its purpose.Paragraphs A-B _______

A. to explain the importance of studying blue holes
B. to show why blue hole exploration is challenging
C. to describe the structure of a blue hole
D. to explain what blue holes are and how they are formed

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Match each section of the passage to its purpose.Paragraph C_________

A. to explain the importance of studying blue holes
B. to show why blue hole exploration is challenging
C. to describe the structure of a blue hole
D. to explain what blue holes are and how they are formed

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Match each section of the passage to its purpose.Paragraph D__________

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Match each section of the passage to its purpose.Paragraphs E-G________

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Choose the correct words to complete the summary about blue holes.Blue holes are caves that are1_________ (underwater / high up in the mountains). They were formed millions of years ago when2_ (huge earthquakes happened / the land above them fell in) and water entered the space. Blue holes are located on land or in the sea. Many of them are very deep and the water inside the holes is usually very3_ (rough / calm). Although exploring blue holes is dangerous, many scientists still risk their lives to dive into them. They think that blue holes can tell us a lot about4_________ (ancient life forms / how the oceans were formed).

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Match each section of the passage to its purpose.Paragraphs A-B _______

A. to explain the importance of studying blue holes B. to show why blue hole exploration is challenging C. to describe the structure of a blue hole D. to explain what blue holes are and how they are formed

Match each section of the passage to its purpose.Paragraph C_________

Match each section of the passage to its purpose.Paragraph D__________

Match each section of the passage to its purpose.Paragraphs E-G________

A. to explain the importance of studying blue holes
B. to show why blue hole exploration is challenging
C. to describe the structure of a blue hole
D. to explain what blue holes are and how they are formed