In my opinion it is tears.
Answer:
B. Convergent and subduction zones can cause trenches
Explanation:
Granite,chalk,slate, that si the only three i can think of at the moment
The tertiary structure of a protein refers to the overall three-dimensional arrangement of its polypeptide chain in space. It is generally stabilized by outside polar hydrophilic hydrogen and ionic bond interactions, and internal hydrophobic interactions between nonpolar amino acid side chains
