Multiple choice

Which of the following is composed of inorganic matter, which supplies nitrogen, phosphorus and potassium to the plants?

  1. Manure

  2. Pesticides

  3. Weedicides

  4. Fertilizers

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fertilizers are manufactured or mined substances containing inorganic compounds of nitrogen (N), phosphorus (P), and potassium (K) - the three primary macronutrients plants need in large quantities. Manure is organic matter from decomposed waste. Pesticides kill pests, and weedicides specifically target weeds. Fertilizers are distinct because they supply concentrated inorganic nutrients.