Which of the following represents the largest man-made ecosystem?

What percentage of photosynthetically active radiation $(PAR)$ can be captured by plants?

Among the ecosystem services are control of floods and soil erosion. How is this achieved by the biotic components of the ecosystem?

An ecosystem resists change because it is in a state of

What is a biogeochemical cycle? What is the role of the reservoir in a biogeochemical cycle? Give an example of a sedimentary cycle with a reservoir located in the Earth's crust.

Plants capture only ................. percent of $PAR$ (Photosynthetically Active Radiation).