Across
- 2. and lakes hold on to Carbon
- 4. of ecosystem services is 100 trillion per year
- 9. services include recreation sites
- 10. communities of living things
- 13. services make Earth habitable for humans
- 14. roots provide nursery areas for fish
Down
- 1. uses steady flow of rivers to make electricity
- 3. regulation involves uptake of CO2 and production of O2 by photosynthesis
- 5. services directly provide resources to people
- 6. dam generates enough power for 1.3 million people
- 7. is used for drinking and irrigating crops
- 8. is the transfer of pollen between flowers
- 11. reef that provides a source of new medicines
- 12. are important pollinators