<span>Definition of Compound. ... The type of bonds holding elements together in a compound can vary: two common types are covalent bonds and ionic bonds. The elements in any compound are always present in fixed ratios. Example 1: Pure water is a compound made from two elements - hydrogen and oxygen.</span>
Answer:
it A
Explanation:
pick A hopefully it right
Glycolysis does not need any oxygen to function
Decomposers don't obtain energy, they release it into the environment.
hope this helps.
