Radioactivity
No. The universe itself is about 13.7 billion years old. Earth is between 4.5 and 4.6 billion years old.
Earth did not exist 700 billion years ago, nor did the universe. Earth is about 4.6 billion years old.
No, the earth wasn't around 7 billion years ago. Earth formed about 4.6 billion years ago.
No, rocks that are 3.5 billion years were not present when earth was first formed. Earth formed about 4.6 billion years ago.
Radioactivity
Best estimates put the Earth's age at approximately 4.6 billion years old.
Scientist say the earth began around 4.5 billion years ago.
Scientist's aren't sure but about 4.5 billion years ago.
Scientists used a variety of dating techniques including radiometric dating of rocks, study of fossil records, and analysis of the Earth's magnetic field to infer Earth's age. By studying the decay rates of radioactive isotopes in rocks and minerals, they were able to estimate that the Earth is approximately 4.54 billion years old.
The universe is 13.7 billion years old & Earth is 4.5 billion years old.
scientist do debate in discussing the age of the earth because there is many theories that saying when is the earth began or made
he discovered radioactivity and that led was in sand. he also calculated that the earth was 4.5 billion years old....and he was right he discovered radioactivity and that led was in sand. he also calculated that the earth was 4.5 billion years old....and he was right
No. The universe itself is about 13.7 billion years old. Earth is between 4.5 and 4.6 billion years old.
Earth did not exist 700 billion years ago, nor did the universe. Earth is about 4.6 billion years old.
It is just a fact that earth is 4.6 billion years old.
The Earth is currently 4.5 billion years, so in approximately 2.5 billion years time.