Planet Of Wonders - "The Earth"
What before us? Really wondering? π€π€ Let us find. Humanity's fingerprint can be seen across the planet today, from the towering skyscrapers that define our modern metropolises to the pyramids and other ancient monuments of our past. Human activity also marks our sprawling open fields of agriculture and the roads that link everything together. But what would had the world looked like when humans were not there? Many of us want to know , so, what was there before us. Answering this is neither easy nor that hard, so let us first began with earth. Our planet is about 4.5 billion years old. Situated 150 million km away from the Sun, it has a circumference of about 30,800 km. It is almost spherical, but bulges a little at the equator and it is flattened slightly at the North and South poles. The first living organisms on Earth are thought to have appeared roughly 4 billion years ago. They were single-celled organisms that existed for nearly 1 b...