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  1. 4 days ago · Step 8: Raise the pH and Alkalinity. After three full days, reverse the process by adding the pH increaser or soda ash. Add around 8 lbs of soda ash per 5,000 gallons of water, making sure to add the 8 lbs in 3 equal doses over 6 to 12 hours to avoid cloudy pool water.

  2. 3 days ago · Which of the following results in the fall of acid rain? A. oxide of lead B. particulate matter C. oxides of sulphur D. gaseous hydrocarbon Show Answer Show Explanation Correct Answer: C

  3. 23 hours ago · Schematic drawing, causes and effects of air pollution: (1) greenhouse effect, (2) particulate contamination, (3) increased UV radiation, (4) acid rain, (5) increased ground-level ozone concentration, (6) increased levels of nitrogen oxides. An air pollutant is a material in the air that can have many effects on humans and the ecosystem.

  4. 4 days ago · Nitrogen dioxide (NO2), a primary contributor to ozone depletion and acid rain, seriously threatens human health. However, the low response and slow dynamics derived from pristine MXene remain a challenge to their real application of NO2 detection. In this work, the novel hydrothermal approach was used to ge

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