2. Bermuda is located in the Sargasso Sea within the North Atlantic subtropical gyre. where waters have relatively low

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2. Bermuda is located in the Sargasso Sea within the North Atlantic subtropical gyre. where waters have relatively low total productivity. The warm and saline surface waters typically are stratified all year so that upwelling and vertical mixing are not factors in net primary production. The reason for the spring maxima and net production at 1 m and 40 m is likely due to blank at that time of year. A: increasing solar radiation. B: mixing due to tropical cyclones. C: increased nutrient intake from rivers
3. The subsequent decline until June in net primarily production at near-surface waters (1m and 40m) is likely due to declining blank. A: solar radiation. B: nutrient supply. C: both a and b are correct
4. A limiting factor in photosynthesis is the amount of sunlight available. Solar radiation is attenuated by ocean water. Even in clear, clean ocean water, red light is completely absorbed within the first 15 m (49 ft.) of depth and typically only about 1% of absorbed sunlight reaches 150 m (492 ft.) depth. The section of water that light penetrates is called blank. A: nutrient zone. B: primary production. C: the photic zone