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Yiwen Ma

Profile picture for user Yiwen Ma

Member for

6 years 5 months

My essays:

  • In an effort to encourage ecologically sustainable forestry practices, an international organizationstarted issuing certifications to wood companies that meet high ecological standards by conservingresources and recycling materials. Companies that receive 73
  • Do you agree or disagree with the following statement? Governments should spend more money in support of the arts than in support of athletics such as state-sponsored Olympic teams. Use specific reasons and examples to support your answer. 60
  • The Salton Sea in California is actually a salty inland lake. The level of salt in the lake's water—what scientists call its salinity—has been increasing steadily for years because the lake's water is evaporating faster than it is being repl 81
  • At the end of the Triassic period 200 million years ago, there was a mass-extinction event that caused the extinction of more than half of all living species. It was this extinction event that allowed dinosaurs to become the dominant species for the next 60
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