A good hypothesis must be one of the following

What causes the formation of ocean currents?

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?