Answer:
Formation of the planets. The various planets are thought to have formed from the solar nebula, the disc-shaped cloud of gas and dust left over from the Sun's formation. ... These rocky bodies would become the terrestrial planets (Mercury, Venus, Earth, and Mars).
Taxation can help the activities of a particular group in the sense that they limits competition or encourage it whether it is a producer or consumer groups.
tax expenditure amount to subsidy because they lead to exemptions or deductions and reduction of credits targeted to a particular or specific group, for example medicare.
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