Which of the following is a major difference between carbon and the other
main elements in organic matter?
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A. Carbon atoms form the backbones of the organic molecules in
living things.
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B. Carbon atoms form bonds with atoms of other elements.
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C. Carbon atoms are found in both living and nonliving things.
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D. Carbon atoms have equal numbers of protons and electrons.

A). Carbon atoms form the backbones of the organic molecules in living things.

Explanation: Carbon atoms forms the backbones of all organic molecules. The organic molecules found in living things include carbohydrates, lipids, proteins and nuclei acids. The building blocks of carbohydrates are monosaccharide sugars which have carbon backbones. The building blocks of proteins are amino acids, the building blocks of lipids are fatty acids while the building blocks of nucleic acids are nucleotides. The building blocks of all the biological molecules have carbon backbones. In these organic molecules, carbon atoms form the skeleton while atoms of other elements are attached to the carbon skeleton through different chemical bonds.

answer; i believe the answer is hydraulic action;

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave