What are the possible effects of contaminated water on the health of an individual or community? Explain your answer in terms of what causes the contamination, the types of infectious agents involved in the related diseases, and how these diseases can spread.

Select all the correct answers. for a claim about the natural world to be considered scientific, what attributes must it have? a). it must be open to modification if new evidence doesn't completely support it. b). it must be based on scientific observations that can be repeated in a controlled setting. c). it must be applicable to future events and occurrences. d). it must be consistent with only a small portion of relevant observations or data.