True, but there are some energy sources cheap
Animals release carbon dioxide (CO2) into the atmosphere through the process of respiration.
Answer: B. under use; it is a scarce resource.
Explanation:
Early settlers in the town of Dry Gulch drilled wells to pump as much water as they wanted from the single aquifer beneath the town. (An aquifer is an underground body of water.) As more people settled in Dry Gulch, the aquifer level fell and new wells had to be drilled deeper at higher cost.Residents of Dry Gulch have a private incentive to under use water because it is a scarce resource.
Answer:
Fluoride theoretically should have 8
Explanation:
Fluoride is the Fluorine ion, meaning electrons are added or substracted from Fluorine to form Fluoride. Usually, an ion has a full outer shell.
