Which individuals in a population are most likely to survive and reproduce?

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

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The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.