CANADA Washington
Seattle
Pacific Ocean
Idaho
Oregon
According to the map above, what type of air mass impacts Seattle's weather the most?
O A. Warm, dry air
O B. Warm, humid air
O C. Cool, humid air
O D. Cool, dry air

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed