The US and Canada both have 4 percent of

the world's tillable land. Which country

grows the most food? Why?

What process describes water falling to the earth from the atmosphere? a. condensation b. evaporation c. infiltration d. precipitation

Which U. S. government office maintains maps of flood risks

Which of the factors that contribute to Ice Ages is responsible for the constant changes from glacial to interglacial periods that we see in the recent record? Orbital cycles Plate tectonic movement Ocean circulation The albedo effect

Can scientists predict earthquakes now? yes, scientist can predict an earthquake right before it occurs, but not enough time to save lives yes, however, they cannot predict the magnitude no, scientists can only look for early warning signs yes, they

Which of these is an example of a conclusion? ring a bell inside a tank of water listen to the sound produced by a drum sound waves do not travel in a vacuum speed of sound may depend on pressure

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.