Answer:The 3rd one
Explanation:
“Crust” describes the outermost shell of a terrestrial planet. Earth's crust is generally divided into older, thicker continental crust and younger, denser oceanic crust. The dynamic geology of Earth's crust is informed by plate tectonics.
Answer:
can you add a picture of the food web.... or a description of whats in the food web?
As bicarbonate ions
