Correct answer: C). They allow the deep ocean to be explored.
Due to the development of submarine technology like a submersible, the deep sea exploration is possible. Previously it was hard to believe that in the deep sea life exist, but due to the development of submersible, it showed that it is possible. It enabled the scientist to advance their studies in the field of deep sea surveying, marine ecology etc.
Hence, the correct answer would be option C
The "thing that hangs in the back of your throat is called a UVULA, its main function is to prevent food from entering your nasal cavity
Homologous chromosomes migrate to opposite poles of the cell during Meiosis I. Meiosis<span> is the process by which replicated chromosomes undergo two nuclear divisions to produce four haploid cells. Hope this answers the question. Have a nice day.</span>