The chemical reactions between limestone and acid in the groundwater form. a) geysers . b) wetlands . c) volcanoes . d) sinkholes .

How are the high islands of the pacific formed? a. by connected coral reefs called atolls b. by lagoons c. by moving glaciers d. by underwater volcanoes

The map above shows where people live in the united states. areas that are darker blue are areas where people live close together. areas that are lighter colors are places where people live farther apart. as a geographer, if you were to study where people live and why they choose to live in these places, which of the six essential elements of geography would you be using?

Which type of seismic waves are confined at the surface