Question

which are limiting nutrients for plant growth? water and nitrogen nitrogen and carbon carbon and phosphorus phosphorus and nitrogen

Explanation:

Limiting nutrients for plant growth are those that are often in short supply and restrict growth when low. Phosphorus and nitrogen are key limiting nutrients (along with potassium, often), as plants need them in significant amounts for processes like photosynthesis, protein synthesis, and energy transfer. Water is not a nutrient (it's a solvent and reactant), carbon is abundant from the air (CO₂), so options with water, carbon are incorrect. Thus, phosphorus and nitrogen are limiting nutrients.

Answer:

D. phosphorus and nitrogen (assuming the last option is D; if options are labeled as A, B, C, D with the last being "phosphorus and nitrogen", then the answer is the option with "phosphorus and nitrogen", e.g., if the last option is D: D. phosphorus and nitrogen)