Mary Anne Cristobal's List: MOE

• We sometimes hear politicians and pundits say, "There's no water pollution problem anymore. We've done very well cleaning up our water." Now, we would never suggest that anyone take a politician at his word or believe the TV—p
• This article is the first of a multi-part series that will splash around in the deep end of the water pollution issue.
• The majority of the planet's liquid freshwater is stored in underground aquifers.
• Polluted runoff from roads, parking lots, and neighborhood lawns
    -- Runoff from farms (pesticides, fertilizers, and animal waste)
    -- Livestock damage to riparian areas (reduces near-stream filtering abilities)
    -- Logging and mining operations
  
• Asian rivers are the most polluted in the world.
• Pollution of freshwater (drinking water) is a problem for about half of the world's population.

• Each year, plastic waste in water and coastal areas kills up to:

   
   
  • 100,000 marine mammals,
   
  • 1 million sea birds, and
   
  • countless fish.

• In one week, a typical cruise ship generates:

   
   
  • 210,000 gallons of sewage;
   
  • 1,000,000 gallons of "gray water" from showers, sinks, dishwashers and clothes washers;
   
  • 37,000 gallons of oily bilge water;
   
  • more than eight tons of solid waste; and
   
  • toxic wastes from onboard operations like dry cleaners and photo processing laboratories.

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• The overall proportion of GCE ‘O’ level students with at least 3 ‘O’ level  passes remained above 95%. The proportion of students with at least 5 ‘O’ level  passes also remained high, at above 80%.  See Charts  B1 and B2.

• DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost  all other organisms.
• DNA is stored as a code made up of four chemical bases: adenine (A), guanine  (G), cytosine (C), and thymine (T).
• DNA bases pair up with each other, A with T and C with G, to form units called  base pairs.
• DNA is a double helix formed by base pairs attached to a sugar-phosphate  backbone

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