Q. Which one of the following is the correct sequence of ecosystem in the order of decreasing productivity?
Answer: Mangroves, grasslands, lakes, oceans
Notes: Productivity is the rate of organic matter or biomass production. The average ocean productivity is about 50 grams carbon per square meter per year; while, the average land productivity is 160 grams carbon per square meter per year. Salt marshes and mangroves have one of the highest productivity of 3300- 6000 grams carbon per square meter per year. So the correct sequence of ecosystem in the order decreasing productivity is: Mangroves > Grasslands > Lakes > Oceans.

This Question is Also Available in:

हिन्दी

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app.

Question Number: 100 in 7. Overview of Plant Kingdom in above course in App.