Age of Earth
Modern estimates are based on radioactive dating methods. The oldest minerals on Earth – small crystals of zircon from the Jack Hills of Western Australia – are at least 4.4 billion years old. Ca-Al-rich inclusions – the oldest known solid bits in meteorites formed in the solar system – are 4.567 billion years old. This gives an age for the solar system(the solar system is the combination of planet, stars,meteroids,astoriods../Https://ncertias1.blogspot.com/2023/09/social-science-of-class-6-earth-in-our.html more and an upper limit for the age of Earth.