Biology, 27.12.2019 09:31, flixtier

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.

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Water always flows down a water slide. the harder a ball is hit, the faster it will travel. small bi...