Homework Help Forum: 7th grade science

Posted by Isabella on Thursday, October 1, 2009 at 6:15pm.

what would happen if a farmer used to much fertilizer? how can this effect an ecosystem?

• 7th grade science - Ms. Sue, Thursday, October 1, 2009 at 6:17pm

  Check this article. http://www.scientificamerican.com/article.cfm?id=fertilizer-runoff-overwhelms-streams

  
  

• 7th grade science - bnf, Sunday, October 4, 2009 at 3:26pm

  bfdbfdbfdb

  
  

• 7th grade science - james, Thursday, October 15, 2009 at 2:28am

  will it be hotter on the ground then in the sky

  
  

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