Which of the following contributes to the high snowfall in the Sierra Nevada during winter?
  • High elevation and Pacific moisture
Which of the following factors has the most impact on the arid climate of the southwestern U.S.?
  • Rain shadow effect and latitude
Which U.S. region is most affected by humid air from the Gulf of Mexico, leading to thunderstorms in the summer?
  • Southeast
In which U.S. state would you expect the highest average temperatures in summer due to both latitude and arid conditions?
  • Nevada
Which region has cooler summer temperatures because of its coastal proximity and maritime influence?
  • Pacific Northwest
Which energy source has seen a dramatic increase in use in the U.S. due to its lower emissions compared to coal?
  • Natural gas