1. It was grown in there.
2. C. There is as much water in the milk/water mixture as milk in the water/milk mixture.
3. 
4. They were musicians
5. 9 metres
6. 2.5 km
7. Yellow opposite orange, red opposite green, pink opposite blue
8. The hole will become larger.
9. Treble 13 Double 18 single 16
10. 3