Read the following text to answer question number 1 to 5.      MELBOURNE: Fire authorities in four Australian states are to control bushfires fanned by strong winds and searing temperatures. The Australian reported Sunday that blazes continued to burn in South Australia, Tasmania, Western Australia and Vactoria, where up to six homes have been destroyed. In South Australia, much up of Adelaide is engulfed in thick smoke. The firefighters who are confronted by blast-furnace winds try to bring the flames under control. At Robertstown in the state in the state’s mid-north, more than 2,500 acres have already burned. Another bushfire, started by lightning, charred the earth near Mouth Flat on the southern side of Kangaroo Island, while Ngarkat Conservation Park, in the state’s upper-southeast, is also ablaze. A 7,500-acres fire at Mount Agnew in Zeehan, in state’s west, broke containment lines Saturday afternoon, jumping a road and coming close to homes. The most serious fires were in Victoria, where up to six homes were destroyed by a fire near the town of Anakie, 36 miles west of Melbourne. In Tasmania, failing temperatures and patchy rain brought some relief to firefighters, who continued to monitor 22 blazes across the state.   What is the text about?