I don't know a lot about volcanos, but I can help you with the formatting
the radiations that are used to treat cancers are of the gamma type. primarily emitted from cobalt-60 (a radioactive isotope). and it is more controlled than other radiation exposures. i.e. solar radiation which is not controlled.
hope that this helps.
Exceptions to a and b are when volcano forms at hot spots in the middle of Continental plates or oceanic plates.
Answer:
they form long chain-like molecules.
Explanation:
they combine using covalent bonds, and give off water molecules.
