1. The universe itself came into existence _____billion years ago with a Big Bang.

Question

Fill in the blanks:

1. The universe itself came into existence _____billion years ago with a Big Bang.
2. Earth travels around the Sun at a speed of _______ kilometers per hour. 
3. The Earth takes _______ days to complete one revolution. 
4. The Earth began to form around _________billion years ago and has reached its present form through several phases. 
5. The Earth is made up of _____ main layers-crust, mantle, and core.

Answer 1

1. The universe itself came into existence 13.7 billion years ago with a Big Bang.
2. Earth travels around the Sun at a speed of 1,07,200 kilometers per hour. 
3. The Earth takes 365 1/4 days to complete one revolution. 
4. The Earth began to form around four and a half billion years ago and has reached its present form through several phases. 
5. The Earth is made up of three main layers-crust, mantle, and core