Why would the American Southwest be a difficult place to live?

The nation's high growth rate has continued despite a roughly replacement-level birth rate since 1972. The Southwest has been hit by a prolonged drought, although one of far less severity than others common to the region in the past. Global warming likely will increase the frequency and severity of droughts

Explanation:

its so obvious. its 999 obviously.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )