Answer:
Geothermal energy is heat derived within the sub-surface of the earth. Water and/or steam carry the geothermal energy to the Earth's surface. Depending on its characteristics, geothermal energy can be used for heating and cooling purposes or be harnessed to generate clean electricity.
Explanation:
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<span>The half-life of Carbon 14 and radionuclides are used to estimate the absolute (versus relative) age of pre-history items </span>
Answer:
B
Explanation:
B It’s a physical change because the water and the salt kept their original properties.
Answer:
It's determined by the ability of one mineral to scratch another mineral.
