Key points: 1  The Australian climate is not just hot â it offers a climate to suit everyone across its eight states and territories. 2  Situated in the southern hemisphere, Australiaâs seasons are at opposite times to the northern hemisphere. 3  Australiaâs tropical region also has a âwetâ and a âdryâ season.
Convection currents are the transfer of heat through the Earth's magma. They can be found in the mantle. The hottest part of the Earth is the core. the heat from the core is transferred into the lower mantle.
These convection currents are responsible for the  movement of Earth's tectonic plates. The depth of the asthenosphere  averages somewhere between 100 km and 200km with depths up to 410  km.   Transition Zone: The depth of the transition zone is  between 410 km and 660 km.