Water pollution in the united states and canada is caused by

Destructive waves erode the coastline in a number of ways. Identify the term that describes when acids contained in sea water dissolves some types of rock such as chalk or limestone. A) abrasion B) solution C) attrition D) hydraulic action

Which of these statements best explains why Ptolemy's model of the solar system was different from Copernicus' model of the solar system? They had different data to interpret. They had different interests and backgrounds.

Access the motivation for the development of tourism

Chemical weathering can increase physical weathering rates because it increases the exposed surface area. true false

Which city is located along the Mississippi River? A. Atlanta B. Chicago C. New Orleans D. New York

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.