Jack did an experiment to determine how different types of lights affect plant growth. He grew 5 plants in darkness, 5 plants in fluorescent light, 5 plants in LED light and 5 plants in sunlight. 1. What was Jack's independent variable?

2. What was Jack's dependent variable?

3. Which of these groups is the control group?

4. What are 3 constants Joe should have in his experiment?

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.