Question : Which one of the following is the correct sequence of ecosystem in the order of decreasing productivity?
Option 1: Oceans, mangroves, lakes, grasslands
Option 2: Mangroves, oceans, grassland, lakes
Option 3: Oceans, lakes, grassland, mangroves
Option 4: Mangroves, grasslands, lakes, oceans
Correct Answer: Oceans, lakes, grassland, mangroves
Solution : The correct option is Oceans, lakes, grassland, mangroves.
Because of the expanse of their water bodies and the abundance of diverse tiny algae (phytoplankton), oceans often have the highest primary production. When compared to other terrestrial ecosystems, lakes have a comparatively high production. Grasslands, while significant ecosystems, have lesser production. Because of the particular adaptations of the plants in this environment, mangroves, which are coastal wetlands, have limited production.
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