11.   Impoverished people, many facing extreme hunger because they are trying to farm in arid regions not suitable for crops, have poached thousands of animals for food.

12.   It is all a wager that water, always precious in this arid region, will become much more so as a growing population strains existing supplies.

13.   It is native to arid regions of the Mediterranean, where survival requires frugal use of water.

14.   Its directors once wanted to build a nuclear reactor on the Sea of Cortez, desalinate the water and pipe it to arid regions.

15.   Los Angeles, which lies in an arid coastal region, has always had growth ambitions far exceeding its meager indigenous water supply.

16.   Need a morning glory adapted to an arid region?

17.   Olive oil is not only a major part of the Spanish diet, it also provides a living for thousands of people in the arid southern region of Andalusia.

18.   Run-off from melting mountain snow is crucial for restocking reservoirs that serve arid regions east of the Cascades.

19.   She fears pollution of the ground-water supply in this arid region.

20.   Some arid regions in the southwestern United States have limited farmers access to water.