Carbon is found in the non-living part of the hydrosphere, atmosphere, and Geo-sphere, as carbonate (CaCO3) rocks and dead organic matter, such as humus in soil.
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Scientific theory definition, a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution.
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1. C.) Their cell walls contain chitin
2. C.) Chloroplast
Basic charged atomic particles are electrons (negatively charged) and protons (positively charged). It is a particle on an atomic scale that is charged