How does having designated uses for bodies of water reduce human impact? A) With designated use, waterways are no longer in danger of being polluted. B) Designated use allows the use of waterways to be limited to ones that best fit the function of the waterway. C) By having designated uses for waterways, soil erosion can be completely avoided. D) All of the above

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.