In 1990, the collapse of the Soviet Union united what two countries?

Scotland / Ireland

Czech Republic / Slovakia

East Germany / West Germany

England / Wales

What have scientists discovered about the interior of the earth since alfred wegener that shows how tectonic plates move?

Precambrian rocks were primarily which type of rock

What does the nile river have in common with the tigris and euphrates river?

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Based on this order, which of the following is true of Neptune? A. It must travel in the opposite direction around the Sun than Earth does. B.

How do activities in one place impact the global environment

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.