By law, as a member of the Reserve, you must, upon request, be granted a leave of absence to satisfy a requirement for military training. The Uniform Services Employment and Reemployment Rights Act requires employers to provide Reservists with time away from their jobs to perform military duty.
acidity is one of the most important causes of damage in paper as it weakens and eventually destroys the fibres that make up the paper as a result paper made from groundwood pulp breaks down rapidly from within the first sign of this is that the paper becomes yellow then brown and increasingly brittle for example newspapers are made from groundwood pulp and the acids in the paper cause it to discolour and become brittle breakdown of the newspaper from within speeds up with exposure to light and or high humidity
When litmus paper touches an acid, the paper changes to red. When it touches a base, the paper changes to blue. By comparing the color the litmus paper changed to by a chart, you could determine how strong or weak that acid or base is. When litmus paper touches an acid, the paper changes to red. When it touches a base, the paper changes to blue.