Nutrient Cycling (LC 2027) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
How do nutrients differ from energy in ecosystems?
How do nutrients differ from energy in ecosystems?
Nutrients cycle repeatedly
What role does photosynthesis play in the carbon cycle?
What role does photosynthesis play in the carbon cycle?
Removes CO2 from atmosphere
What do decomposers release during decomposition?
What do decomposers release during decomposition?
Carbon dioxide
Which is an example of a carbon sink?
Which is an example of a carbon sink?
Growing forests
How much has atmospheric CO2 concentration risen over the past 200 years?
How much has atmospheric CO2 concentration risen over the past 200 years?
From 0.028% to over 0.042%
How do cattle release most of their methane?
How do cattle release most of their methane?
Through burping (90%)
What percentage of the atmosphere is nitrogen gas?
What percentage of the atmosphere is nitrogen gas?
78%
Why is nitrogen essential for living organisms?
Why is nitrogen essential for living organisms?
Makes proteins, DNA and RNA
Where do nitrogen-fixing bacteria live in legume plants?
Where do nitrogen-fixing bacteria live in legume plants?
Root nodules
What conditions does nitrogen fixation require?
What conditions does nitrogen fixation require?
Anaerobic conditions
How do nitrifying bacteria obtain energy?
How do nitrifying bacteria obtain energy?
From chemical reactions
What is the final product of nitrification?
What is the final product of nitrification?
Nitrates
What happens after algae die during eutrophication?
What happens after algae die during eutrophication?
Bacteria use oxygen to decompose them