Odd one out in minerals

Exercise and reference answers

Questions

1. Items

   1. Magnetite
   2. Paddy
   3. Haematite
   4. Iron ore

   Odd item

   Paddy

2. Items

   1. Peat
   2. Lignite
   3. Mustard
   4. Coal

   Odd item

   Mustard

3. Items

   1. Copper
   2. Bauxite
   3. Zinc
   4. Wheat

   Odd item

   Wheat

Instructions

Tap the item that does not belong with the other three.

Explanation