Question

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

Explanation:

To determine the limiting nutrients for plant growth, we analyze each option:

• Water is not a nutrient (it's a solvent and reactant), so "water and nitrogen" is incorrect.
• Carbon is abundant in the atmosphere (plants get it from \(CO_2\)) and is not typically a limiting nutrient for growth in most cases, so "nitrogen and carbon" and "carbon and phosphorus" are incorrect.
• Nitrogen and phosphorus are often in short supply in soils and are critical for processes like protein synthesis (nitrogen) and energy transfer/DNA synthesis (phosphorus), making them common limiting nutrients for plant growth.

Answer:

D. phosphorus and nitrogen (assuming the last option is labeled D; if the original options had labels like A - D, with the last option being the correct one, the answer is the option with "phosphorus and nitrogen")