When water is cooled, it becomes more dense and sinks to the bottom of the water column. The displaced water is them replaced with . more cold water from the North and south pole

warm water moving in from the equator

water that is roughly the same temperature as the displaced water

water from volcanic vents

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

How does secondary succession differ from primary succession?