Which of the following is an observation and not an inference? a. a cup with steam coming from it will be hot to the touch. b. dark clouds in the sky will mean rain later in the afternoon. c. bubbles form when two chemicals are mixed together. d. a plastic bag moving along the ground is being pushed by the wind.

How do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.