Deep time Geography Flashcards
What is the purpose of dating objects
The purpose of dating objects is to understand them better so if they were dated back in 1800s it would give us an understanding of what they used back in that time and how they cooked, how they built, etc.
List three general examples of archaeological evidence
Artefacts, fossils, tools
a source made 30,000 years ago would be an example of what kind of source when studying deep time
It would be a primary source because it was made when they were created by people or things that were there at the time or event.
What is a primary source
A primary source is the most direct evidence of a time or event because they were created by people or things that were there at the time or event. were there at the time or event.
what is a secondary source
A secondary source interprets and analyzes primary sources. These sources are one or more steps removed from the event. Secondary sources may contain pictures, quotes or graphics of primary sources. Some types of secondary source include Textbooks; journal articles; histories; criticisms; commentaries; encyclopedias.
what is the out-of-Africa theory
contends that earlier Homo species did in fact migrate from Africa before the evolution of H. sapiens. Out of Africa 2 (also called the population replacement hypothesis) picks up where Out of Africa 1 leaves off.
Which three modern day landmass were apart of sahul
mainland Australia, Tasmania, New Guinea, and the Aru Islands.
what are megafauna
The name megafauna means ‘big animals’, generally animals with a body mass of over 40 kilograms.
List one theory’s about the extinction of megafauna
On theory was that the extinction of megafauna was caused by humans who arrived in Australia for the first time around 50,000 - 60,000 years ago the theory said that excessive burning of bush and forest and over-killing resulted in their extinction
what is aquaculture
Aquaculture is breeding, raising, and harvesting fish, shellfish, and aquatic plants.
