Sound waves are most effective when traveling through solids. Less effective when in liquids and least effective in air.
The Inca “City of the Sun” was the city of Cuzco
A form of energy associated with the positive and motion of the object.
Answer:
Radioactive dating is a method of dating rocks and minerals using radioactive isotopes. This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks. Over 300 naturally-occurring isotopes are known.
