Multiple choice

In aquatic ecosystems, net primary productivity is related to

  1. whether the water is freshwater or salt water

  2. available at sunlight and nutrients

  3. the speed at which the water moves

  4. waves and tides
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Net primary productivity in aquatic ecosystems is primarily limited by the availability of sunlight (for photosynthesis) and essential nutrients (like nitrogen and phosphorus) that producers need to grow.

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