Energy, water, nitrogen and soil minerals are other essential abiotic components of an ecosystem. The energy that flows through ecosystems is obtained primarily from the sun. It generally enters the system through photosynthesis, a process that also captures carbon from the atmosphere.opography also controls ecosystem processes by affecting things like microclimate, soil development and the movement of water through a system. This may be the difference between the ecosystem present in wetland situated in a small depression on the landscape, and one present on an adjacent steep hillside.
Definition of âstumbling blockâ - English Dictionary. âstumbling blockâ in British English. stumbling blocknoun [ C ] Lack of willingness to compromise on both sides is the main/major stumbling block to reaching a settlement.
Definition - What does Concrete Block Wall mean? A concrete block wall is a wall made up of standard size concrete blocks. The standard size is 8 inches, however, depending on the design parameters and standards set by an engineer for the concrete structure, the block sizes may vary.