The recommended weight limit according to NIOSH would be base on an equation and is dependent to a number of factors. This equation is called the NIOSH Lifting equation.  Under ideal conditions, the maximum recommended weight is 51 pounds. Hope this answers the question.
        
             
        
        
        
Answer
 B, C, and D
Explanation:
For the most part B, C, and D are correct as they would help in any case. However, answer A cannot help you because even hiding in a basement can still have a risk of becoming injured or risk of death. For instance, if the basement is linked to the house, it can eventually collapse due to the intense heat that will weaken the wood. 
 
        
             
        
        
        
Answer:
The Human Excretory System
Explanation:
The Human Excretory System is crucial in removing or discharging wastes from the body. Wastes may come in the form of urine, earwax, excrement, sweat, carbon dioxide, etc. 
The "skin" is part of the Excretory System that is responsible for removing<em> salts</em> from its surface in a process called<u> sweating</u>. On the other hand, the "lung" is responsible for excreting <em>"carbon dioxide</em>." Having high levels of this element in the blood will lead to <u>failure of the respiratory system</u>.