“THIS” IN THE FOURTH PARAGRAPH REFERS TO ………. A. THE TECHNOLOGY TO...
17. “This” in the fourth paragraph refers to ………. A. The technology to harvest the sea continues to improve. B. Technology is enabling man to explore ever more deeply under the sea. C. Ocean currents and waves offer possible use as a source of energy. D. The warm temperature of the ocean can be used in a way similar to the steam in a steamship.