Water Quality

1234567
Across
  1. 3. low temperature reduce ___
  2. 5. High ____ lead to oxygen oversaturation
  3. 7. Treatment of water
Down
  1. 1. bacteria produce oxygen
  2. 2. Amount of chlorine fish can withstand (μg/L)
  3. 4. Measuring the salt content in water
  4. 6. Important survival,homeostasis&develop