OS: Windows 7. AV: Avast. Farbar Recovery Scan Tool, or FRST, is a portable application designed to run on Windows XP, Windows Vista, Windows 7 and Windows 8 in normal or safe mode to diagnose malware issues. It is also possible to run FRST in the Windows Recovery Environment in order to diagnose and fix boot issues.
Quarry dust a by- product from crushing process during quarrying activities is good alternative during construction projects. It is used as substitute to sand to make quarry dust concrete which is believed to be stronger and more durable than the regular concrete materials.
Dust is a threat both to mineworkers and to communities near mines. The most dangerous kinds of dust are coal dust, which causes black lung disease, and silica dust, which causes silicosis. Dust that contains asbestos (which causes asbestosis) or heavy metals is also dangerous. 1 Signs of lung damage.