How do geologists know that earth and the solar system are approximately 4.6 billion years old?

The larges lakes in the world are found in: asia europe north america south america

How is france’s culture important to its economy

If u make mistakes on a school trip to knotts like standing up on a ride too early and they ask you not to do it again or and if you do it again you will be escorted out will it go on my student record? yes i know it is a dumb question