Answer :
If a high and low-pressure system were to develop over Australia, then the winds would move from high to low pressure and would be deflected to the left.
High pressure often means dry weather with sunlight while low pressure often means clouds and precipitation and humidity and lighter weight of the air. High pressure is associated with sinking air because of the heavy weight of the air. Air pressure is higher because it is pushing down on the ground. Also the normal air pressure is said to be the weight of 11 elephants.
In Australia, several things would affect the result of a high and low pressure system. Both these factors, the place where it is occuring, the Coriolis force and several others would guarantee a different result at all times.
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