The image below is a model of a watershed. precipitation
surface-water inflow
W
evaporation
water table
ground-water inflow
aquifer
bedrock
surface-water inflow
ground-water outflow
Modified from image courtesy of USGS
What would happen if the groundwater flow were contaminated?

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.