Padi Divemaster Chapter 8 20 Correctly Answered Questions Latest Update

Less productive ocean areas {Ans: open ocean}Primary producers {Ans: organisms converting sunlight energy into energy containing compounds base of all food chains occurs through photosynthesis}cause of red tides? {Ans: from nutrient pollution dinoflagellate plankton blooms sometimes have nuerotoxins which bioaccumulate}Threats to mangroves {Ans: 1) real estate 2) dredging 3) aquaculture 4) chemicals}best time to dive based on tides {Ans: high tide or slack tide}Mangrove ecosystem services {Ans: 1) trap excess nutrients, pollutants and sediments 2) habitat for invertebrates and juvenille reef fish}