Question

water always flows down a water slide. the harder a ball is hit, the faster it will travel. small birds use less energy to fly as fast as big birds. the statements above are examples of - a hypotheses. b scientific laws. c unproven theories. d research problems.

Explanation:

A scientific law describes a natural - occurring phenomenon that is consistently observed. The statements about water flow, ball motion, and bird energy use are consistent natural observations. Hypotheses are proposed explanations yet to be tested. Unproven theories are broader and more complex than these simple consistent observations. Research problems are questions to be investigated, not statements of observed phenomena.

Answer:

B. scientific laws