The answer is the first one because it doesn't create gases and, the third one doesn't even make any sense so its definitely not that one
None...........................probably mars
C they are always found in homologous pairs
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
Answer: Ask your teacher for some help
Explanation: if anything can help us your teacher