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.
Hello! i would say this is true based on what i have learned. hope that helps!
Question
what is the tallest tower in the world?
Answer
Burj Khalifa in Dubai (2,722 ft)
b.) Pampas barbecue that is a open piece of land with fertile soil as i remember it