Class 5 (SSC) • History-Civics (इतिहास-नागरिकशास्त्र)Chapter 3: Life on Earth⭐ Topic 2
Practice and Revision - Life on Earth
Let us practise and revise what we learned about life on earth. Life on Earth began billions of years ago and has evolved into millions of d
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Learn the idea step by step
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Scientists believe life on Earth began in the oceans billions of years ago, starting with simple single-celled organisms.
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Quick revision
Remember these!
- Life began in oceans billions of years ago.
- It started with simple single-celled organisms.
- Life evolved into complex plants, animals.
- This happened over billions of years.
- Earth hosts millions of species today.
- Each is adapted to its environment.
- Understanding this shows life's diversity.
- It shows our place among living things.
Words to know
life on earthssc std 5