|
Today, I learned about the birth of earth. I didn't know about it exactly, but I had a feeling that I knew something. The Universe was born about 15billion years ago during the Big Bang.
There are nine planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. I like the Saturn very much because its dust roundings are beautiful.
We can see the horoscope back of the 10,000WON bill. There are four geologic times:
- Precambrian Era
- Paleozoic Era
- Mesozoic Era
- Cenozoic Era
Bacterias were the first living creatures on earth. I couldn't believe that microscopic sized bacterias were the ancestors of human being! |
