Urban settlement increases carbon dioxide emissions by A. Expanding the use of public transformation
B. Generating more factories
C. Increase the need to drive
D. Resulting in more tree growth

The layers of earth are based on what two sets of characteristics?

17. the soil erosion pictured here is the result of what? a. harvesting renewable resources at a rate greater than the sustainable yield b. a mudslide caused by excessive rains c. harvesting renewable resources at a rate lower than the sustainable yield d. the transition between geologic eras and eons

How many active volcanos are there in nicaragua