Question

1. sound travels faster in the ocean compared to in the air primarily because

the ocean is deeper.
the ocean is noisier.
currents carry sound faster than wind carries sound.
the ocean is denser.
there is a smaller temperature range in the ocean.

Explanation:

Sound travels faster in denser mediums. The ocean (a liquid) is denser than air (a gas). Density affects how quickly sound waves can propagate. Deeper or noisier conditions don't directly relate to sound speed. Current - wind comparison is not the main factor. Temperature range is also not the primary reason for the speed difference.

Answer:

the ocean is denser.