How do humans affect the desert biome

How many inches of snow did any of you guys get last night?

How does central place theory explain patterns in the size and distribution of cities?

Which statement about portugal is not true? a. it granted independence to its last colony in 1975 b. it has avoided conflict with spain c. it was a leader in european world exploration in the 1400s d. its economy is changing from agricultural to industrial b. it has avoided conflict with spain