Nutrients and Fertilisers (Grade 12 NSC Matric Physical Sciences): Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
Where do plants obtain carbon (C), a non-mineral nutrient?
Where do plants obtain carbon (C), a non-mineral nutrient?
From carbon dioxide in the air
In what quantity are macronutrients needed by plants?
In what quantity are macronutrients needed by plants?
Large quantities
What is nitrogen (N) essential for in plants?
What is nitrogen (N) essential for in plants?
Proteins and chlorophyll
What plant processes does phosphorus (P) support?
What plant processes does phosphorus (P) support?
Photosynthesis and flowering
What does potassium (K) help plants with?
What does potassium (K) help plants with?
Disease resistance & fruit development
What are organic fertilisers made from?
What are organic fertilisers made from?
Natural products like manure
How can plants absorb nutrients?
How can plants absorb nutrients?
Only when dissolved in water
What does the percentage in an NPK ratio like 3:1:5 (38) represent?
What does the percentage in an NPK ratio like 3:1:5 (38) represent?
% of fertiliser mass that is nutrients
What mass of N is in 200g of fertiliser with NPK 5:2:3 (50)?
What mass of N is in 200g of fertiliser with NPK 5:2:3 (50)?
50g
Calculate moles of P in 100g fertiliser with ratio 4:3:8 (60) if g/mol.
Calculate moles of P in 100g fertiliser with ratio 4:3:8 (60) if g/mol.
0.25 mol