48. How do wetlands affect drinking water? A. They filter pollutants from surfac

Question

48. How do wetlands affect drinking water? A. They filter pollutants from surface runoff ing the clean water supply D. A and b only 49. Which of the following describes a coast? A. B. They are constant in response to conditions around them Zone where the land touches the sea C. Extends from the shoreline to the first major change in terrain S0. Which of the following describes cartilaginous fish? A. includes sharks and rays fins are attached to bony sockets to allow for swimming backwards C. bodies are made entirely of cartilage D. both a and e are correct Which of the following describes a way in which plankton adapt to where they live? A. B. 51. All use oils or air bubbles to float. They can have spines or other structures to decrease the surface area of their bodies, in order to sink more quickly They must find ways to float or tread water for their entire lives, so adapt accordingly. All of the above are correct C. D. Which of the following is a marsh plant adaptation? A. B. C. D. 52. Some plants float Some have extensive root systems to anchor them in the mud The plants only reproduce when the marsh is completely dry. A and B only How have humans impacted coastal wetlands? A. Pollution 53. B. Dams C. Development D. All of the above 54. Freshwater fish maintain salt content by putting outamounts of urine. A. large; dilute B. small; concentrated C. large; concentrated 55. Which of the following is not true about coastal wetlands? A. They protect shorelines from erosion and flood damage during storms B. They are not as important as freshwater wetlands. C. They serve as nurseries for many marine organisms.

Explanation / Answer

48.A. They fliter pollutants from surface rumoff

49.B. Zone where the land touches sea

50.D. Both a and c areacorrect

51.D. All of above are correct.

52.A and B only

53.D. All of above

54.large, dilute

55.B.they are not as important as freshwater wetlands

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