Maria wants to know if birds prefer to eat in one place over another. She has three of the same bird feeders and fills them with the same amount of the same birdseed. She puts each of the feeders in her backyard: one feeder in a large dead tree, another feeder on the doghouse, and the last feeder in a small tree. She measures the amount birdseed eaten from each bird feeder after 5 days. What is the dependent variable?

(A) Amount of birdseed eaten
(B) Amount of time feeders are outside
(C) Locations of the bird feeders
(D) Type of bird seed

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.