What is the main way a representative democracy differs from a direct democracy?
Citizens elect leaders who vote on the issues in a representative democracy, and citizens vote on the issues in a direct
democracy.
A representative democracy is modern, and a direct democracy is ancient
A representative democracy works better in small groups, and a direct democracy works better in large groups.
Citizens' desires are ignored in a representative democracy, and citizens' desires have a better chance of being heard in a
direct democracy.
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mechanics (greek   is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation:

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.