1) which bacteria convert soluble nitrates into gaseous nitrogen? a) saphrophytic b) denitrifying c) nitrogen fixing 2) what type of bacteria are nitrogen fixing in the soil? a) nitrosomas b) clostridium c) rhizobium 3) a springtail is an example of a) herbivore b) carnivore c) detritivore 4) saphrophytic bacteria convert a) urea into soluble nitrates b) ammonia into soluble nitrates c) ammonia into soluble nitrates 5) rhizobium is found where? a) soil b) pea plant roots c) potatoe roots 6) what are soluble nitrates used for? a) carbohydrate production b) lipid production c) protein production 7) nitrosomas and nitrobacter are examples of a) nitrifying bacteria b) saphrophytic bacteria c) nitrogen fixing bacteria 8) what 2 natural methods will change N2 gas into nitrates? a) rain and wind b) rain and lightning c) lightning and snow

n cycle quiz

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