Most countries were ruled by kings, queens, or priests.
The answer is 4 is helps you estimate the distance between two places.
Answer:
hope this helps
Explanation:
Earth receives different amounts of solar energy at different latitudes, with the most at the equator and the least at the poles
Answer:
Radioactive isotopes are unstable and will decay. ... The isotopes will decay into a stable isotope over time. Scientists can tell how old the rock was from looking at the radioactive isotope's half-life, which tells them how long it would take for there to be half the radioactive isotope and half the stable isotope.
