Trees π³- There are more trees on Earth π than stars π on milky way π galaxy. Trees π³ also help in many ways .
Earth's names - There are so many names of planet Earth through out the history.
1) Gaia or Gaea - This name was given from ancient Greek.
2) Terra- As Earth π is a terrestrial planet so it was named as Terra.
3) Prithvi Mata - It was given from Sanskrit word .
4) Mundus - Given by Romans
5) Orbis - This name was kept because The planet Earth π moves on it's orbit.
At last , the English word "Earth" came and finally kept this name permanently. It was derived from old English word .