Question

The growth of a plant is adversely affected if an essential nutrient is present below its critical concentration.

• A. essential element concentration below which plant growth is retarded.
• B. essential element concentration below which plant growth becomes stunted.

Answer 1

The correct option is A

essential element concentration below which plant growth is retarded.

By definition, the critical concentration of an essential element is that concentration below which the growth of the plant is affected very much. Therefore the given statement is true.