A compound is a pure substance composed of two or more different atoms chemically bonded to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.
Answer:
DNA
Explanation: Because if you stretch DNA it gets longer.
I want to say 59 atomic mass units<span> is beta decay, but I'm just guessing from previous Chem. class.</span>
All tropical cyclones can produce widespread torrential rains, which cause massive flooding and trigger landslides and debris flows.