note system
21. {Field:242}
Answer: note system
scientific research
22. {Field:241}
Answer: scientific research
scientific journals
23. {Field:240}
Answer: scientific journals
internet
information from internet
the internet
24. {Field:239}
Answer: (the)/(information from)internet
B
25. {Field:229}
Answer: B
A
26. {Field:228}
Answer: A
B
27. {Field:227}
Answer: B
C
28. {Field:226}
Answer: C
B
29. {Field:225}
Answer: B
B
30. {Field:224}
Answer: B
safe and reliable
31. {Field:177}
Answer: safe and reliable
scarce
32. {Field:178}
Answer: scarce
washing
33. {Field:179}
Answer: washing
lakes and dams
34. {Field:180}
Answer: lakes and dams
air pollution
35. {Field:246}
Answer: air pollution
pure and safe
36. {Field:245}
Answer: pure and safe
contamination
37. {Field:183}
Answer: contamination
drinking
38. {Field:237}
Answer: drinking
A
39. {Field:233}
Answer: A
B
40. {Field:234}
Answer: B