What term refers to the essential chemical elements required for plant nutrition?

The term that refers to the essential chemical elements required for plant nutrition is "Nutrients." Nutrients are substances that provide the necessary elements for plants to grow and develop properly. These include macronutrients such as nitrogen, phosphorus, and potassium, which are needed in larger quantities, as well as micronutrients like iron, manganese, and zinc, which are required in smaller amounts.

Plants absorb these nutrients from the soil, which is vital for their development, health, and productivity. Without the proper nutrients, plants may suffer from deficiencies that can affect their growth, yield, and ability to resist diseases.

The other options do not align with the concept of essential chemical elements for plant nutrition. Natural resources encompass a broader category, including materials and substances found in nature, but not specifically linked to chemical elements for plant growth. Population refers to the number of individuals in a given area and has no direct connection to plant nutrition. Poverty generally denotes a socio-economic condition and does not pertain to the requirements for plant growth and nourishment.