What makes many lead and other metal water systems safe? What happens when this breaks down?

In a market economy, what does a producer mean when it asks, "is there a market for my products? is there a place where we can sell our products? " "ls our product being made more cheaply overseas? " will consumers need and want to buy our products? " will the government support demand for our products? "

Many members of the civilized tribes farmed

When paul realizes no one is coming to the rwandan refugees, he tells them there is only one way for them to get . what is it?