1. name two factors people consider when deciding how to use land.
2. in what parts of the world is barren land common?
3. summarize the land use in australia. include the whole continent.
4. how do you think an increase in roads lead to more industrialization and suburbs?

1. Farming and Housing.
2.  Mainly North America, Antarctica, and Africa but there are other lands like tundra regions, lands with beaches or thin soil. 

3.Nature conservation ,Other protected areas including Indigenous uses Minimal use ,Grazing natural vegetation ,Production forestry ,Plantation forestry,Grazing modified pastures ,Dryland cropping Dryland horticulture ,Irrigated pastures Irrigated cropping ,Irrigated horticulture,Intensive animal and plant production ,Intensive uses (mainly urban) \,Rural residential ,Waste and mining ,Water

4.I think that more roads increased industrialization and suburbs because more roads mean more places to travel.Roads helped industrialize America because roads are very advanced and new. Roads increased the usage of motor vehicles and people had to create new technology and things in order to accomodate the needs of drivers and their vehicles, which led to even more creations.  More roads increased suburbs because now raw goods can be transported even farther. Interstate highways enabled more Americans to drive many more vehicles many more miles on a few more roads, and suburbanization required them to do so. With construction of the interstate highways, the United States became a nation of suburbanites.People drove farther because they needed to do so to reach jobs, shops, and recreation. 
(Sorry that this was so long. Just wanted to try and help)

The answer would be political systems .