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krystian krystian
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6 years ago
The sun's energy is produced by:
  a. nuclear fission reactions.
  b. nuclear fusion reactions.
  c. electromagnetic radiation.
  d. ultraviolet radiation.
  e. infrared radiation

Question 2

Dissolved phosphorus in aquatic ecosystems may return to the land via:a.
   erosion.
  b. phosphate mining.
  c. birds eating fish and mollusks.
  d. zooplankton.
  e. decomposition
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ilovephysicsilovephysics
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6 years ago
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krystian Author
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6 years ago
this is exactly what I needed
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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2 hours ago
This site is awesome
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