Lakes Generally Evolve Naturally Over Time in the Following Manner

Q5: Groundwater (from wells) may contain<br>A)salt from use

Q6: Mercury poisoning can occur from consuming fish

Q7: Lead enters drinking water primarily from<br>A)improperly discarded

Q8: The recovery zone of polluted natural waters

Q9: Acids can enter natural waters due to<br>A)industry,

Q11: Cold, clear lakes or streams with few

Q12: Water pollution can be<br>A)biological<br>B)chemical<br>C)biological or chemical<br>D)visible but

Q13: A "clean zone" of water has<br>A)a high

Q14: Anaerobes are forms of life which<br>A)can live

Q15: Sediment (soil particles) in natural waters can<br>A)