Question

Graham purchased a bag of fertilizer at the hardware store to improve the state of his front lawn. He noticed three letters on the bag: NPK. What do those letters stand for?

A. 

nitrogen, phosphorous, phytoplankton

B. 

nitrogen, phosphorous, potassium

C. 

nitrogen, potassium, phytoplankton

D. 

nitrous oxide, potassium, phosphate

Answer 1

The answer is,3 macronutrients required for plant growth,which are:

Nitrogen,Phosphorus and Potassium

Answer 2

Nitrogen, phosphorous, potassium.

Step-by-step explanation:

Fertilizers are the chemicals required for the plants to protect them from the pathogens, disease and helps in the proper growth of the organism. Fertilizers provide the nutrient in soil.

The three letters on the bag NPK is noticed by Graham. N stands for Nitrogen, P stands for phosphorus and K stands for potassium. These all chemicals are used as a macro-nutrient for the plants and required in the proper amount for their growth.

Thus, the correct answer is option (B).