Answer: about 3.1 people per square kilometer, but varies with different locations. For example, the Australian Capital Territoy has the largest density of 171 people per sq km, followed bby Victoria (27), New South Wales (9.7), and Tasmania (7.6). Hope this helps :)
Answer: North America, South America, Antarctica, Europe, Africa, Asia, Australia
The closest planet to the sun would be Venus.
Answer:Nicholas Steno first formulated the principles that allow scientists to determine the relative ages of rocks in the 17th century. Steno stated that sedimentary rocks are formed in continuous, horizontal layers, with younger layers on top of older layers.
Explanation: