Across
- 4. In ... geometry, the equation to the sphere takes the forms x 2 +y 2 +z 2 =a 2, and r=a, the first applying to rectangular Cartesian co-ordinates, the second to polar, the origin being in both cases at the centre of the sphere.
- 5. 5
- 7. 6
- 8. Infant deaths were especially ... among the very poor.
- 9. It isn't like they couldn't survive without her ... to their family income.
- 10. 3
Down
- 1. 2
- 2. 1
- 3. 4
- 6. 7