I think it is the Prime Meridian, though I may be wrong.
Answer:
An ecological network is a representation of the biotic interactions in an ecosystem, in which species (nodes) are connected by pairwise interactions (links). These interactions can be trophic or symbiotic.
Hydrosphere is the answer because the islands and continents belong to water and hydro means water so this means water sphere
Lake Michigan
Hope this helps!!
It increases lag time and reduces the risk<span> of a </span><span>flood</span>