Related Clues:
- BBC documentary "Planet ___"
- Most common chemical compound
- What ten theme answers contain
- Odds of being allergic to it: 1 in 230,000,000
- Ocean contents
- Image on eco-friendly products
- Down-to-___ (unpretentious)
- With 104-Down, utility gauge
- View for an astronaut
- Soil and dirt
- Third rock out
- "Smoke on the ___"
- ______ski
- Tend to, as plants
- Tend, as houseplants