Topic 4

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Across
  1. 1. complex networks showing who eats whom in aquatic ecosystems
  2. 6. another term for surface run-off
  3. 11. organisms used to assess the health of an ecosystem
  4. 13. the area above the water table where soil pores contain air and water
  5. 14. any place where water is stored, such as lakes, reservoirs, or glaciers
  6. 15. a composite measure of water quality using various indicators
  7. 17. precipitation that is caught and held by vegetation before reaching the ground
  8. 18. organisms that eat primary producers
  9. 19. increased river discharge resulting from surface run-off after a storm
  10. 20. the downward movement of water through soil and rock layers
  11. 21. the process by which water vapor cools and turns into liquid droplets
  12. 24. an underground layer of water-bearing permeable rock or sediments
  13. 25. the flow of intercepted water down the stems or trunks of plants
  14. 28. water stored beneath the Earth's surface in soil and rock crevices
  15. 29. the flow of groundwater into rivers, lakes, or oceans
  16. 34. a layer of impermeable rock that prevents water from flowing through it
  17. 35. the percentage of pore space in soil available to hold water
  18. 38. limit on the number or weight of fish that can be caught
  19. 40. the continuous circulation of water between the atmosphere, oceans, and land
  20. 41. the portion of streamflow that comes from groundwater seeping into the river
  21. 43. the process of water being added to an aquifer from surface infiltration
  22. 44. the area below the water table where all soil pores are filled with water
  23. 48. increase in concentration of substances up the food chain
  24. 49. organisms that eat secondary consumers
  25. 54. an area of land where all water drains into a common waterway
  26. 55. the farming of aquatic organisms such as fish, crustaceans, and aquatic plants
  27. 57. water that collects on the surface of the ground, such as rivers and lakes
  28. 59. the upward movement of nutrient-rich water from deep in the ocean
  29. 60. the combined process of evaporation and transpiration
  30. 61. a graph showing the flow of a river over time
  31. 63. a surface or material that does not allow water to pass through easily
  32. 64. removing fish from a body of water at a rate faster than they can reproduce
  33. 65. the input of nutrients into an ecosystem, often leading to eutrophication
  34. 66. water flowing over the land surface toward rivers, lakes, or oceans
  35. 67. water released from clouds in the form of rain, snow, sleet, or hail
  36. 68. the process of water seeping into the soil from the surface
  37. 69. a surface or material that allows water to pass through easily
  38. 70. situation where individuals deplete a shared resource by acting in their own self-interest
  39. 71. organisms that eat primary consumers
  40. 72. nutrient enrichment of water bodies leading to excessive algae growth
Down
  1. 2. the change of water from solid ice directly to water vapor without becoming liquid
  2. 3. the positions organisms occupy in a food chain or food web
  3. 4. large plastic debris such as bottles and fishing nets
  4. 5. small drifting animals that feed on phytoplankton
  5. 7. decrease in ocean pH due to absorption of carbon dioxide
  6. 8. runoff water from rain or melting snow that flows over surfaces into water bodies
  7. 9. buildup of substances, such as pesticides, in an organism
  8. 10. an area of ocean where human activity is limited to conserve marine life
  9. 12. the upper surface of the saturated zone of groundwater
  10. 16. the movement of water through aquifers beneath the surface
  11. 22. amount of oxygen required by microorganisms to decompose organic matter in water
  12. 23. the highest catch that can be maintained over time without depleting the stock
  13. 26. aquatic plants large enough to be visible without a microscope
  14. 27. the maximum amount of water soil can hold after excess water has drained away
  15. 30. the upward movement of water through soil due to surface tension
  16. 31. tiny plastic particles less than 5 millimeters in size
  17. 32. pollution from a single identifiable source, such as a factory discharge pipe
  18. 33. the relationship between inputs and outputs of water in a system
  19. 36. microscopic plants in aquatic environments that perform photosynthesis
  20. 37. the amount of water held in the soil
  21. 39. accumulation of plastic objects and particles in Earth's environment
  22. 42. the horizontal movement of water vapor from one location to another
  23. 45. the transformation of water from liquid to vapor due to heat
  24. 46. pollution from diffuse sources, like agricultural runoff
  25. 47. cloudiness or haziness of a fluid caused by suspended solids
  26. 49. lateral movement of water through the soil toward streams or rivers
  27. 50. the area from which rainfall flows into a river, lake, or reservoir
  28. 51. tool used to measure water transparency or turbidity
  29. 52. organisms that make their own food from sunlight or chemicals
  30. 53. low oxygen levels in a body of water
  31. 56. the area of land drained by a river and its tributaries
  32. 58. the release of water vapor from plant leaves into the atmosphere
  33. 62. absence of oxygen in a body of water