In which of the following, all three are macronutrients?
1. Iron, copper, molybdenum
2. Molybdenum, magnesium, manganese
3. Nitrogen, magnesium, phosphorus
4. Boron, zinc, manganese

Which one of the following is not a micronutrient?
1. Molybdenum
2. Magnesium
3. Zinc
4. Boron