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Biology Life on Earth Revision

Covers Recycling of Nutrient, Fertilizers, Fertilizer Design and NPK
Quiz by dbuzz12
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Last updated: March 16, 2021
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First submittedMarch 16, 2021
Times taken10
Average score33.3%
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Question
Answer
What happens to organisms when they die?
They are broken down
What is the aboves process called?
Decomposition
How is the aboves job done?
By decomposers living in the soil
Name 2 of the decomposers?
bacteria and fungi
Why is it important that decomposition happens?
nutrients can be used again by other organisms
Why is there a food shortage?
population growth
How can we increase the yield of crops produced?
Add more nitrogen
What do fertilizers contain?
Nitrogen
Question
Answer
What will manure do?
Release ammonium
In addition to nitrogen what else do fertilizers contain?
phosphates and potassium
What does Nitrogen do (N)?
Encourage leaf growth
What does phosphorus do (P)?
Encourage Root Growth
what does potassium do (K)?
Encourage fruit and flower growth
Why does the ratio of NPK vary?
It varies depending on what needs to be grown
Where does it tell us the ratio?
On the packet
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