<span>1. Groundwater is the water source in the 3rd world countries. Access to drilling and pumping technologies can increase the standard of living for many villages in sub-Saharan africa.
2. Previous industrial activities have impacted groundwater sources to the point that some areas are not suitable for potable water use without extensive remediation efforts
3. Groundwater is an important source of drinking water and irrigation water in areas that are also home to natural gas production. </span>
Because of the shadow, it chills the place down, it's not facing the Sun, matter of fact its the farthest from the Sun, because the Earth is tilted and deserts tend to be on equator where the Earth gets the most sunlight.
<span>1 inch of rain per year is less than many
of the world's most arid places get.
That's a real desert, and
probably could not support any grass.</span>
In the Sahara desert, which occupies half of the continent of Africa, the
annual rainfall ranges from 0.8 to 3.9 inches per year. You can see that
1 inch per year is near the bottom of the Sahara's range !
Low-order products are products that are repeatedly purchased and are low-priced while Middle-order products are time-to-time items that are purchased but not as often as low-order products. Also, High-order products are the most expensive items or have a limited market and are scarcely purchased.
