Question

Origin (age) of Earth

First life on earth
First plant life on land
T-rex first appears
Modern Humans

4.5 billion years ago
3.7 billion years ago
470 million years ago
67 million years ago
200,000 years ago

Answer 1

4.5 billion years ago

Answer 2

Well I know life on earth started 4.5 billion years ago so origin of earth goes with 4.5 billion years ago but the first life on earth started 3.5 billion years ago I know this because I have multiple books on it T-rex first appears around 66 to 68 million years ago and first modern humans came around 200,000 years ago. If life itself was a football field, we would only be a sliver of grass.