¿que plantas? ¿dónde están?
Precipitation is the primary source of water stored in an aquifer. the correct option in regards to the given question is the first option.
An aquifer is actually an underground layer of water that
contains permeable rocks, gravel, sand etc. the water can be brought to the
surface by making a water well. Hydrogeology is the study of aquifers and the
way of water flow in the aquifers. The depth of the aquifers differs from area
to area and the aquifers that are closest to the surface are used for drinking
and irrigation purposes.
<span>As humans change the way we live on the planet, the way that nitrogen moves around the Earth also changes. Nitrogen atoms may seem small enough to be easily overlooked. We look right through the ones in the air, do we not? Yet recent changes in the nitrogen cycle are causing a very noticeable effect on natural environments and human health. Lakes are clogged with aquatic weeds. Dead zones have formed in areas of the oceans where animals can not survive. Air pollutants that contain nitrogen are decreasing air quality and greenhouse gases that contain nitrogen are becoming more common.</span>
