Information and IdeasMediumDetail: why old sea ice can be drunk
Information and Ideas practice question
Sea ice forms from salt water, yet it contains almost no salt. As the water freezes, the salt is pushed out into pockets of brine, which slowly drain away, so old sea ice can be melted and drunk.
According to the text, why can old sea ice be melted and drunk?
- A. The salt has drained away in pockets of brine as the ice aged.Correct
- B. Sea water contains no salt.
- C. Old ice is cleaner than new ice.
- D. Melting removes the salt.
Answer: A. The salt has drained away in pockets of brine as the ice aged.
Brine pockets that drain.
Why the other answers are wrong
- B. Sea water contains no salt.
- Sea water is salty.
- C. Old ice is cleaner than new ice.
- Not stated.
- D. Melting removes the salt.
- The salt leaves before melting.
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