Across
- 4. Forms like subsistence, industrial, or organic
- 6. Supplying water to crops artificially
- 11. Plants converting sunlight into chemical energy
- 12. Gradual change in ecosystems over time
- 13. Likelihood of individuals living to certain ages
- 14. Migration or dispersal of organisms
- 15. Eruption of magma to Earth’s surface
- 16. The elements or substances something is made of
- 17. Combining nuclei to release energy, like in stars
- 19. Process where traits improve survival and reproduction
- 23. Element central to organic life and climate systems
- 24. Distance north or south of the equator
- 26. 20th-century agricultural boom from new technologies
- 29. Protective atmospheric layer that blocks UV radiation
- 33. Splitting atomic nuclei to release energy
- 35. Power harnessed from sunlight
- 38. Long-term weather patterns in a region
- 39. Organic matter used as a fuel or energy source
- 40. Energy from naturally replenished sources
- 43. Warming of Earth due to trapped heat in the atmosphere
- 45. Essential nutrient often cycled through ecosystems
- 47. Combining methods to control pests sustainably
- 48. Clearing of trees, often for agriculture or development
- 50. Groups of organisms of the same species living in an area
- 52. Protection and sustainable use of natural resources
- 56. Loss of ozone layer, allowing harmful UV radiation
- 57. How long it takes a population to double
- 58. Livestock feeding that damages vegetation and soil
- 59. Direct manipulation of an organism’s DNA
- 61. Causes moving air and water to turn due to Earth’s rotation
- 63. Meeting current needs without harming future generations
- 67. Rising average temperature of Earth’s atmosphere
- 69. Sudden ground shaking from tectonic movement
- 71. Related to manufacturing or factories
- 72. Protection of nature from use or development
- 73. Process cells use to release energy from glucose
- 74. Average number of children per woman
- 75. Preventing soil erosion or degradation
- 76. Genetic change in a population over generations
Down
- 1. Energy generated from flowing water
- 2. Wearing away of soil or rock by wind, water, or ice
- 3. Movement of Earth’s crustal plates
- 5. Land degradation into desert, often due to human activity
- 7. Gases like COâ‚‚ and methane that trap heat
- 8. Increasing worldwide interconnectedness
- 9. Using less energy to perform the same task
- 10. Groups of interacting species in an area
- 18. Creating food through farming or fishing
- 20. Handling of solid or hazardous waste materials
- 21. Removal of contaminants from air, water, or soil
- 22. Farming methods that protect resources
- 25. Related to farming and food production
- 27. Cleaning up or fixing environmental damage
- 28. Benefits humans receive from ecosystems
- 30. How organisms or populations are spread across space
- 31. How quickly a population increases
- 32. Non-native species that harm ecosystems
- 34. Long-term alteration of temperature and weather
- 36. Returning an ecosystem to its original state
- 37. Related to the sun
- 41. A species with a large impact on ecosystem stability
- 42. Variety of species in an ecosystem
- 44. Population increase at a constant percentage rate
- 46. Movement of ocean waters, affects climate
- 49. The farming of fish, shellfish, or aquatic plants
- 51. Growth of cities and human populations
- 53. Large ecological areas with distinct climates and organisms
- 54. Energy derived from Earth’s internal heat
- 55. Maximum population an environment can support
- 60. Result from Earth’s tilt and orbit around the sun
- 62. The role and position of a species in its environment
- 64. Short-term atmospheric conditions
- 65. Network of feeding interactions in an ecosystem
- 66. Nutrient critical to DNA, often from fertilizers
- 68. Strength or magnitude, often of energy or weather events
- 70. Efforts to reduce severity of environmental impacts