Important notes of geography

Bigbang theory is the theory about the explosion of the big massive lump known as primeral atom. The parts of it were formed as planets, galaxies.

Milkyway galaxy is our home galaxy that is the home of solar system and earth. It was formed 15 billion years ago.
Each galaxy has 10^11 stars.
There are total 10^22 stars in this universe.

Venus is the brightest planet and is said to be the earth’s twin in case of mass and earth size.

Venus is a veiled planet.it has clouds around it.and that’s why it is the hottest planet even more hotter than mercury.

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