Spot the intruder

Exercise and reference answers

Questions

1. Items

   1. Splash
   2. Sheet
   3. Rill
   4. Altitude

   Odd item

   Altitude

2. Items

   1. Solar
   2. Wind
   3. Hydro
   4. Coal

   Odd item

   Coal

3. Items

   1. Afforestation
   2. Tree planting
   3. Fire control
   4. Lumbering

   Odd item

   Lumbering

Instructions

Three belong together. Tap the one that does not.