Which of the following is not an example of a service provided by beneficial bacteria?

a. nutrient cycling
b. food production
c. bioremediation
d. bioaccumulation

What arrow on the map points to an air mass moving toward a cold front

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

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.