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Feb 17

Punctuation Exercise

Correct the punctuation in the following sentences, and then, explain why the change was necessary.

  1. The copy center, like the check cashing service and the convenience store would be open 24 hours each day.
  2. Harris/3 M offers a 36 month leasing plan. For the proposed copies for the center, the 6055 and the 6213. Lease costs would be $702 per month which includes maintenance.
  3. If the target goal of 36,000 copies per month billed at $.045 is met the equipment would pay for itself in 2.5 years sooner if the monthly allowance is exceeded.
  4. The fixed costs involved with this project; electricity, ventilation and floor space are not considered.
  5. There are two types of ultraviolet (UV) radiation; UV-A and UV-B. UV-A radiation which is frequently used for tanning beds, is lower in energy (longer in wavelength) than UV-B therefore it is considered safer than UV-B radiation. Some experiementers; howver, believe that UV-A is just as damaging as UV-B; although higher doses of UV-A are required.
  6. Many theories about the depletion of ozone have been proposed but at present, two main hypotheses are widely accepted; the chemical mechanism and the dynamic mechanism.
  7. Chlorofluorocarbons (CFCs) such as the refrigerant freon, are very inert compounds, however, when CFCs drift into the upper atmosphere ultraviolet light will activate them.