Question

select the sentence from the section that shows why cold oceans have saltier water. a. the density of water can change when temperature changes. b. when ocean water freezes and forms sea ice, salt is left behind. c. next, the dense, cold, salty water sinks to the bottom of the ocean. d. this water also becomes cold and salty enough to sink.

Explanation:

Cold oceans have saltier water because when ocean water freezes to form sea - ice, salt is left behind, increasing the salinity of the remaining water. Option b explains this process.

Answer:

b. When ocean water freezes and forms sea ice, salt is left behind.