Earth Spheres Essay


The biosphere is a closed self-regulating system that integrates living organisms with non-living pieces of a globe (Lenkeit). The biosphere is part of the outer shell of the planet and includes the atmosphere, hydrosphere, and lithosphere (answers. com).

The hydrosphere can be an open system that contains every one of a world's solid, the liquid, and gaseous water (Answers. com). As an open program, the hydrosphere interacts with the nearby systems through inputs and outputs (Lenkeit).

The atmosphere can be an open program that consists of a gaseous mix enveloping a planet (Answers. com). These types of gasses, generally known as air, consist of O2, N2 and WATER. The atmosphere is also composed of water, ice cubes and dust allergens. Atmosphere capabilities like a umbrella, keeping Earth's heat from escaping in space (Lenkeit). It has already been compared to a greenhouse: like glass that lets brief wave insulation inside, yet keeps the majority of long influx ground rays from heading out (Lenkeit).

The lithosphere is an open system, which consists of all of the frosty, hard, sturdy rock with the planet's brown crust area (surface), the semi-solid mountain that is placed underneath the brown crust area, the hot liquid rock nearby the center of the planet, and the sturdy iron primary (center) around the planet (Answers. com). On Earth, the lithosphere comprises the brown crust area and the upper part of the mantle. The lithosphere is about 59 miles thick (Lenkeit).


The four spheres of the Earth system are highly interdependent creating interactions between the spheres to obtain many trigger and result relationships. A change in one ball can cause changes in another ball, which may trigger changes in yet another sphere. The biosphere is usually sustained through interactions with the gasses through the atmosphere, minerals of the lithosphere, and normal water of the hydrosphere in the strength cycle (Answers. com). The atmosphere is vital for the biosphere because it supplies oxygen, water, CARBON DIOXIDE and some nutrients (N) to living microorganisms,...

Cited: Answers. com. " Biosphere. " Answers. com. 1 Sept. 2005.

Lenkeit, T. A. " Physical Location. " Foothill-De Anza Community College Area & The William and

Flora Hewlett Foundation. 2004. 1 Sept. 2006.