Origin of Life: Short Notes
- The final phase in Earth’s evolution was the “Origin of Life”. Life began with a chemical reaction that produced complex organic molecules capable of self-replication. These molecules turned inorganic matter into living things.
- Life is believed to have started on Earth around 3.5 to 4 billion years ago. Scientists study the origin and development of life using fossils. Life evolved from single-celled organisms to more complex forms over time.
- The earliest known single-celled creatures appeared around 3.5 billion years ago, about a billion years after Earth formed. More complex life forms evolved gradually, with multicellular organisms emerging about 600 million years ago.
- The transition from simple single-celled life to multicellular organisms was a significant event in Earth’s history, dramatically changing the planet’s environment.
Origin of Life| Class 11 Geography Notes
Class 11 Geography Chapter 2: Origin of Life: The start of life from basic materials that weren’t alive is called the origin of life. When simpler life forms change and become more complex over time, it’s called the evolution of life. Life began on Earth around 3.5 to 4 billion years ago, and it’s been changing and growing ever since. In the beginning, all life was simple, just single cells. Later on, more complex creatures with many cells appeared, and this led to a huge variety of life on Earth.
In this article, we will delve deep into the topic of “Origin of Life” from Chapter 2 of the NCERT Class 12 Geography book. These notes are specially curated by an expert team at w3wiki for all the students.
Let’s get started!