IELTS listening · Listening Test 19
A lecture on environmental science
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Section 4
Section 4
A lecture on environmental science
Questions 31–38
Write NO MORE THAN THREE WORDS for each answer.
31.a source of water
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Answers & explanations
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- 31
safe and reliable
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- 32
scarce
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- 33
washing
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- 34
lakes and dams
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- 35
air pollution
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- 36
pure and safe
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- 37
contamination
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- 38
drinking
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- 39
A
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- 40
B
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Understand why, not only what.
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