Test # 102
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1100 questions in 110 tests. Each test contains 10 questions.
Chewing gum and using straws both make you burp more as they encourage you to swallow air. .. More >>
1.an account at a post office that can be used in similar ways to an account at a bank
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Precaution while using Microscope
Proper microscope care
Taking proper care of the microscope is another important part of microscope use and safety. For example, the lenses are very delicate and should not be touched directly. Touching the lenses can cause smudges, possible scratches, or even a break that could cut someone. If the lenses become smudged, use a special lens paper to clean them instead of putting pressure on them with a cloth.