Q. Which of the following are the Micro-elements needed to increase soil fertility?
Answer: Manganese, copper and zinc
Notes: In relatively large amounts, the soil supplies nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur; these are often called the macronutrients. In relatively small amounts, the soil supplies iron, manganese, boron, molybdenum, copper, zinc, chlorine, and cobalt, the so-called micronutrients. So we use fertilizers to increase the soil fertility.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 54 in Chemistry-6-Minerals and Ores in above course in App.