Question

Arrange the events given below in chronological order.

1. Water bodies appeared on the earth’s surface.
2. The sun and the planets revolving around it were created.
3. Protozoa appeared in water.
4. An enormous cloud of hot gases and dust was formed in space. 

Answer 1

• An enormous cloud of hot gases and dust formed in space.
• The sun and the planets were formed.
• Water bodies appeared on the earth's surface.
• Protozoa appeared in water.