12. biology is the study of living things. carbon is the element that makes life possible. why is carbon so special that it is required for life? [] it is a positively charged ion needed in reactions. [] it has 4 valence electrons, so it can make 4 strong bonds with other atoms. [] it is a polar molecule, which makes it have a high heat capacity. [] because it has 4 valence electrons, it is small and only makes small compounds.

Because carbon is the base of living things. Consider the word "carbohydrates." The prefix carbo- is equal to carbon. Most things are bonded to carbon.

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B and silicon can work the same way. hope i helped!!!

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

the areas around the equator