Answer:
about 4.6 billion years old. Scientists measure its age by using radioactive decay of isotopes found in meteorites and rocks. The Potassium and Uranium isotopes were formed at the same time as the solar system. The inference is that the age of the rocks and meteorites, is the age of the solar system.
Explanation:
external, when he was walking down the road alone, while cars passing by without stopping to ask him if he needed help or anything
Answer: D) Do you recognize ideas you've run across in other sources
or A but I say D
Explanation: because D is like you have already read over and spotted something interesting, but A seems accurate too.
It tells the audience what is going to happen to the play, and it shows the central conflict between families