Which allowed scientists to determine that earth was at least 4.3 billion years old?

Click on this article and use it to answer the questions below.article on china and controlling the media 1. according to the article, the chinese government has tried to control its people in all of the following ways except: question 1 options: create and spread propaganda in the mediacensorship of the mediaallowing people to create their own social mediadeleting people's social media posts without their permission

When another customer complains about the hair salon where georgeanna is a loyal customer, she defends it because she feels responsible for the continued success of the hair salon. this behavior suggests she has reached the rung of the loyalty ladder.

Who is the current chief justice of the united states?