6. Keberadaan gurun di Australia terjadi karena __ a. Australia merupakan benua tua b. Australia merupakan pusat tekanan udara rendah saat angin muson c. Australia terletakpada wilayah turunnya massa udara d. Australia dikelilingi oleh lautan 7. Ada sejumlah faktor yang mendorong penduduk desa di Asia pindah ke kota. Salah satu faktor tersebut adalah __ HOTS a. alasan ekonomi seperti semakin terbatasnya lapangan kerja di kota b. tidak adanya konflik di suatu wilayah c. tidak adanya bencana alam di desa d. terbentuknya gurun (desertification) dan intrusi atau masuknya air laut ke arah daratan

6.c 7.a

The subject matter of both questions (#6 and #7) get at the root of geographical transformations and migratory trends. They investigate the geographical causes of certain phenomenons, be it the emergence of deserts in Australia or the urban drift in different parts of Asia.The sixth question asks why deserts have formed in Australia. Option 'c', which states that Australia is positioned where large bodies of air are descending, seems to suggest probably atmospheric conditions that may result in desertification. Arid conditions are often pronounced where descending air masses are prevalent, leaving the surface warm and dry. This effectively indicates the formation of deserts. To truly grasp this question, one would require an understanding of climatology and weather patterns.The seventh question pertains more towards human geography, particularly inquiring into migration trends within Asia. Many reasons for the migration from rural to urban areas exist, the most apparent amongst them being cited in option 'a': people are motivated to move because of the faltering rural economic structures and dwindling employment opportunities.Understanding the gist of and answering these questions hinge on appreciating main geographical concepts and recognitions.