Describe the pathway of a Nitrogen atom from our atmosphere, through the bacteria that process it, back to the atmosphere. include the roles of 3 different types of bacteria in the Nitrogen cycle.

Prior to the mt. st. helens eruption on may 18, 1980, satellite and topographic views of the volcano were captured. based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 9 options: 600 m 400 m 750 m 500 m