give answer and explanation

--•Caution Question•--
Responsio :
3) B. The danger of vulcanic fumes (reason : the caution just consists that vulcanic fumes is danger for those people, it doesn't mention its effect)

4) A. The fumes can make them difficult to breathe (reason : logical, fumes can make people difficult to breathe, not just who has problem with their breathing)

5) d. All the volcanoes for tourist resort (reason : the place with many people is the right place for such a caution, so it will be useful)

6) B. Dangerous (reason : hazardous has the sama meaning with dangerous, which is "berbahaya"

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Be beautiful on the inside, you will see the universe a beautiful place. -Elia Abu Madi