Q: Nonmetal structures contain what type of bonds? Choices: - prevalent - polymeric - gravitational - covalent A:
covalent
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Q: Chemists use simple diagrams to show an atom's valence electrons and how they do what? Choices: - bond - react - escape - transfer A:
transfer
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Q: Irrigation can waste a lot of what natural resource? Choices: - habitat - money - fertilizer - water A:
water
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Q: What process is the opposite of nitrogen fixation? Choices: - digestion - respiration - percolation - denitrification A:
denitrification
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