Which of the five themes of geography would a person most likely use to study the importation of chinese goods into the united states?
a.
places and regions
b.
movement
c.
human systems
d.
physical systems

Afarmer who is grown corn for the past five years notices in the sixth year that the his harvest is significantly smaller, despite an increase in labor on the farm. the following year, the harvest continue to decline. which of the following explanations most plausibly accounts for the reduction in corn yield? a) soil degradation b) desalinization c) better irrigationd) terracing