A macronutrient is needed in amounts above ___ percent of a plant's dry weight.
A) 0.1
B) 0.2
C) 0.5
D) 2
E) 5

Question

Quizplus · Accepted Answer

Macronutrients are nutrients that are required by plants in relatively large amounts. Macronutrients include elements such as nitrogen, phosphorus, and potassium, as well as calcium, magnesium, and sulfur. These nutrients are required in amounts above 0.5% of a plant's dry weight. Therefore, the best answer is C (0.5%). Answers A, B, D, and E are too low or too high to be considered accurate.

A Macronutrient Is Needed in Amounts Above ___ Percent of a Plant's