Multiple ChoiceWhich of the following pathways indicates how nitrogen is added to the largest nitrogen reservoir (the atmosphere)?68views
Multiple ChoiceNitrogen gas (\(N_2\)) becomes converted into biologically usable chemical forms by what type of organism?80views
Multiple ChoiceIn the context of nitrogen fixation, what role do lichens play in helping to create soil during primary succession?383views
Multiple ChoiceHow might the nitrogen cycle change if nitrogen-fixing bacteria and archaea went extinct?51views
Multiple ChoiceWhich process is responsible for converting atmospheric nitrogen gas (\(N_2\)) into biologically usable forms such as nitrite (\(NO_2^-\)) and nitrate (\(NO_3^-\))?57views