After reading this essay you will learn about the sulphur cycle. Sulphur is one of the components that make up proteins and vitamins. Proteins consist of amino acids that contain sulphur atoms. Sulphur is important for the functioning of proteins and enzymes in plants, and in animals that depend upon plants for sulphur. Plants absorb […]
Sulphur Cycle: Essay on the Sulphur Cycle | Earth |Geography
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Oxygen Cycle: Essay on the Oxygen Cycle | Earth | Geography
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After reading this essay you will learn about the oxygen cycle. The oxygen cycle is the biogeochemical cycle that describes the movement of oxygen within and between its three main reservoirs; the atmosphere (air), the biosphere (living things), and the lithosphere (Earth’s crust). The main driving factor of the oxygen cycle is photosynthesis, which is […]
Essay on the Plate Tectonics Theory | Earth | Geography
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After reading this essay you will learn about the plate tectonics theory. Plate Tectonic theory is based on an earth model characterized by a small number of lithospheric plates, 70 to 250 km (40 to 150 mi) thick, that float on a viscous under-layer called the asthenosphere. These plates, which cover the entire surface of […]