Improvement in Food Resources · Class 9 · CBSE Science
Which of the following macronutrients is provided by air and water to plants rather than by the soil?
Practice question from Improvement in Food Resources (Class 9 · CBSE Science), with the correct answer and a step-by-step solution.
easy · MCQ · Q-DFB0B0
Which of the following macronutrients is provided by air and water to plants rather than by the soil?
- A.Nitrogen
- B.CarbonCorrect answer
- C.Phosphorus
- D.Potassium
Solution
Plants obtain carbon and oxygen from the carbon dioxide in the air, and hydrogen from water. Therefore, carbon is supplied by air and water, while nitrogen, phosphorus, and potassium are soil-supplied macronutrients.
More from Improvement in Food Resources
- Italian bee variety, Apis mellifera, is commonly used for commercial honey production. What is its major advantage over native varieties?
- Which of the following farming practices aims at minimizing chemical input and maximizing nutrient recycling through organic waste?
- Why is Italian bee variety preferred over native varieties for commercial honey production?
- Which of the following is an exotic breed of cattle crossed with local Indian breeds to improve lactation period and disease resistance?
Practise more Science
Sign up free for adaptive practice on this chapter, with instant feedback and hints on every question.
Start practising freeFree to start · No credit card needed