<span>When a divergent boundary occurs under the ocean it is called oceanic ridge.</span>
The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.
So yeah xD
~ Hope this helps! -by Kana ^^
I think it’s the first but I am not for sure take a guess
Diamond!! it is often used for its hardness!