Why is deforestation a problem in australia and oceania? a. logging is the number-one economic sector in the region, and most people rely on forests for their income. b. forests are needed to provide shade because of the hot climate in the region. c. forest areas in the region are limited, and the loss of forests leads to drought, soil erosion, and habitat destruction. d. forests cover the majority of australia and oceania, and large numbers of animals depend on these forests for their habitat.