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سؤال 94

Which statements correctly describe the role of phosphorus in common fertilizers? Select all that apply.

  1. White phosphorus pieces are the normal source.
  2. Phosphorus is an essential plant nutrient.پاسخ درست
  3. Phosphorus has no nutritional role in plants.
  4. Fertilizers can supply it in compounds.پاسخ درست

توضیح

Plants require phosphorus as a nutrient, and fertilizers commonly supply it through phosphorus-containing compounds. Normal fertilizer use does not mean adding pieces of elemental white phosphorus, which is a different and hazardous substance.

ادامهٔ این آزمون

شروع تمرین
سؤال 94: Which statements correctly describe the role of phosphorus… · The Periodic Table and Elements · Questena