Mystery site #9 • This site dates back to 40,000 y. a.
• Site is in southeastern Australia.
• 2 skulls found here indicate the earliest evidence of H. sapiens in Australia.

The answer is "Lake Mungo".

Explanation:

In the Mysteries, the Lake Mungo was the digital media platform for students for secondary education. It's included in Australia's history on their sites mysteries information. It is designed to allow children to discover the extensive culture of Australia.  

In Lake Mungo, southeast of south wales, ’s largest known remains were found. In t his site, it was inhabited during the deepest parts of the ocean Lake process around 45000 and 20000 years ago. And over the past 16,000 years, Lake Mungo was without irrigation and is now a desert.

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.

answer; direct observation;