The activities for which water is needed:
1. to play
2. to sing
3. to row a boat
4. to write
5. to make tea
6. to knead the dough
7. to run a fan
8. to paint pictures
9. to grow plants
1
3, 4, 5, 6, 7, 8, 9
2
3, 4, 6, 7, 8, 9
3
3, 4, 5, 6, 8, 9
4
3, 5, 6, 8, 9