The demand for clean water can never end, even if you are in the wilderness. The scenario gets worse when dealing with a disaster or a natural accident. Contamination of water sources is among the most unexpected events. A flood or an earthquake c...Top-5-off-the-Grid-Water-Purification-Methods …

The article Experimental study on effects of drilling parameters on respirable dust production during roof bolting operations, analyze the effect of drilling control parameters as well as looking at various ways of reducing respirable dust when d...Mine-Safety-and-Health:-Respirable-Dust- …

You have to play the role of an African American, democrat, senator, and write about their beliefs of the immigration reform proposal. What they like about it, what they don\'t, and whether or not they would vote for it or against it. Introduct...Immigration-Reforms …