There are six factors you should always consider when choosing a respiratory protection device: 1  The level of the hazard you are exposed to. This is the most important factor to consider. 2  The type of material that the respirator is made of. Respirators are currently being made from a wide range of materials. 3  The weight of the respirator.
Why Was The Monroe Doctrine Issued. 13 Jul, 2012 why was 0. The Monroe Doctrine is a policy that was introduced by the President James Monroe in 1823 in his seventh State of the Union Address to the Congress.he doctrine has been invoked many times since 1823 and is considered to be one of the most important developments in U.S. foreign policy. Letâs find out the circumstances that led to this doctrine being issued.
The Monroe Doctrine is a foreign policy statement created in 1823. In this lesson, you'll learn about the doctrine's main points and how it was interpreted and applied over the following century.