How did life develop on Earth? Or What was the origin of life on earth

1.	How did life develop on Earth? Or What was the origin of life on earth?
Answer» 1. After the creation of the Earth, it took about 80 crore years for its surface to cool down and for water bodies to be formed on it. 2. Various kinds of unicellular organisms known as protozoa, first appeared in water. 3. Gradually, multicellular living things developed from these unicellular ones. 4. Thus, life developed on Earth.

How did life develop on Earth? Or What was the origin of life on earth?

Answer»

1. After the creation of the Earth, it took about 80 crore years for its surface to cool down and for water bodies to be formed on it.

2. Various kinds of unicellular organisms known as protozoa, first appeared in water.

3. Gradually, multicellular living things developed from these unicellular ones.

4. Thus, life developed on Earth.