Secondary bacterial infections is bad for any body but even worse for elderly because there body can't fight it off because there bodies are wore down the human life cycle is kinda like a car you by it brand new then as it gets older it starts to brake down and ware out then it finally brakes down for good
If groundwater dissolves the limestone and other minerals in the ground, the surface on top may eventually fall into it, causing a sinkhole.<em> (B)</em>
False. Through unprotected sex, the person who had HIV could transmit it to the person who does not.