Answers created by Oscar L.

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• Which type of nuclear process results in a lower mass nuclei than the reactants?
  
• An increase in the plants in a pond might be the first evidence that what ?
  
• How is it possible for a positively charged nucleus to release a negatively charged beta particle?
  
• How are protists described?
  
• What are three major obstacles to peace between Israel and Palestine?
  
• Why is calcium oxide basic in nature?