Biology 5090 · O Level · Effects of humans on ecosystems

Effects of humans on ecosystems — practice question

An ocean has been contaminated by an oil spill. What would be least likely to increase the rate at which microorganisms break down the oil?

  • Aaerobic conditions
  • Bmixing by wave action
  • Cpresence of salt water
  • Dspraying the surface of the sea with warm water

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