Which of the following is not a factor that contributes to the desertification of an area?

A. jet stream

B. erosion by wind

C. changing climate conditions

D. the mismanagement of land by people

What was the weather like in the middle colonies

About what percentage of the counties in Arizona have a population of less than 4-12 people per square mile?

West African music and dance came to the Americas primarily through A. traders slaves C. colonists . missionaries

Which is the difference between the Paleozoic and Mesozoic era

Atmosphere-ocean environments related to climate are produced by interactions of which of the following? A. The lithosphere and hydrosphere B. Tectonic plate interactions with the lithosphere and hydrosphere C. The atmosphere and hydrosphere D.

1. Describe the most important diagnostic properties in igneous rocks. 2. What minerals would you expect to form in basalt? (Hint: Consider composition and Bowen's reaction series). Explain your answer.

What is the most important role of the ecosystems of the Andes? A. Keep the environment stable and reduces air pollution B. Reduce the chance of floods, desertification, and landslides C. Regulate the availability of freshwater D. All of the above

All of the following are examples of thematic maps except:

Which is used by scientists as evidence that Earth's inner core is solid? O A. S waves cannot travel through the inner core, creating a shadow zone. O B. Seismic waves change speed when they go from the inner core to the outer core. O C.

What role did geography play in the early African kingdoms? Volcanic eruptions scared away attackers. Mineral deposits brought wealth and power. The Great Rift separated them from the continent. Tropical storms extended the growing season.