Answers created by ramiya

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• How does the kidney get rid of excess sodium and maintain water balance?
  
• What do human egg cells have in common with human sperm cells?
  
• Why don't we use seawater for growing crops?
  
• How does irrigation affect our water usage?
  
• Question #fbafe
  
• How do you solve #-3[ 2a + 3( 5- 2a ) ] = a - [ 6- 4a ]#?
  
• Question #4bf3f
  
• Question #af8eb
  
• Question #3e258
  
• Does an open system differ from a closed system?
  
• Why aren't hydrogen fuel cells being seriously considered as a source of energy?