Which of the following is not one of the three important developments that was made in agriculture in the past 50 years? a. a growing labor force b. the use of biotechnology c. increased mechanization d. the development of agriculture as a business

While viewing a topographic map, you notice a region in which the contour lines are very close together. what can you conclude about this region? a. it has a high population. b. it has a steep incline. c. it's near a political boundary. d. it contains a body of water.