The sun and the planets formed together 4,6 billion years ago from clouds of gas and dust called the solar nebula
Answer:
A star
Explanation: The sun is the brightest star in the solar system ,and is the only star that can be visible during the day.
Due to rapid urbanization fueled by trade, approximately 87 percent of people live in urban areas of Australia. The correct option among all the options that are given in the question is the first option or option "A". A large part of Australia is covered in jungle and so major cities are places where people flock the most.