With the development of a canyon, which of the following would be considered an erosion instrument? Select one:

falling trees

hot weather

lightning

running water

The government of country a has determined there is a coal shortage a seed on mining reports as a result of these data the government decreases coal exports to other nations access to information country a

Based on the information in the graph, what can you conclude about humans in the world in general?

Dubai is challenged by all of the following environmental factors except a. a warm and dry climate b. a lack of annual rainfall c. scarce freshwater resources d. a lack of valuable natural resources