Sub-Saharan Africa<span> is, geographically, the area of the continent of </span>Africa<span> that lies south of the </span>Sahara<span> Desert. Politically, it consists of all </span>African<span> countries that are fully or partially located south of the </span>Sahara<span> (excluding Sudan, even though Sudan sits in the Eastern portion of the </span>Sahara<span> desert).</span>
Include or not include trace gases?
Answer:
aquifer
Explanation:
Most aquifers contain water saturated layers of rock or loose sediment. Aquifers have within them water- filled caves.
