How is Canada’s transportation system (roads, railways, ships, and planes used for moving people and freight) related to the ecumene and non-ecumene areas of the country?

Asap! ! ! western china, northern china and southeastern mongolia are all located in what climate zone? tropical wetdesert humid subtropical humid continental

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!

All of the following are reasons why deserts extremely susceptible to wind erosion except a. they lack major root systems b. they contain thin, dry soil c. they have very few plants and trees d. they are extremely hot and lack water