Which is a force is responsible for seafloor spreading? A.

convection in the mantle

B.

condensation in the mantle

C.

the effect of tides

D.

convection in the crust

The Richter scale is a log scale. Each magnitude higher earthquake shakes ten times more than the one below it. So a M3 shakes ten times as much as a M2 earthquake. A M4 shakes 100 times as much as a M2. And a M5 shakes 1000 times as much as a M2.

How many offers were made ro the palestinians to create their own átate

Which canadian province forms part of the eastern border of maine

How do physical geographic systems impact human geographic systems?

Which of these descriptions would fit both Paleo - and Archaic Indian cultures? Choose all that apply A) They all lived in small groups B) They survived by hunting and gathering C) They used tools D) They stayed in the same place for long periods of

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.