Groundwater refers to the water present underground, in the spaces and cracks in the sand, soil, and rock. It is accumulated in and moves gradually through the geologic creations of sand, soil, and rocks known as aquifers.
The groundwater supplies drinking water to about 51 percent of the total population of the United States and 99 percent of the rural population. Almost 64 percent of the groundwater is utilized for irrigation purposes, and it is also a source of recharge for rivers, lakes, and wetlands.
Hence, the correct phrases that describe groundwater are feeds rivers, used for irrigation, and provides drinking water.
Hydrogen as in hydrocarbons
nitrogen as in cyanides
sulphur as in carbon di sulphides
oxygen as in combustion of carbon
the rest i left out needs a third party element to bond to carbon
Answer:
To clean groundwater you must:
Explanation:
Eliminate the pollution source: An underground tank must be pumped dry and then dug out from the ground. A factory must be required to stop releasing toxic chemicals. Farms must be more careful about the chemicals they put on their fields.
Monitor the extent of the pollutant: Scientists test water in wells. Sometimes they drill wells to test water. They learn how the groundwater is flowing: how fast and in what direction. They study the contaminants in the groundwater. Then they determine where the contaminant plume is going.
