I believe the correct answer from the choices listed above is option A. A new energy source found in the ocean that is currently very costly to obtain would be methane hydrates. Although the high cost, it <span>represents a potentially vast </span>methane<span> resource for both the United States and the world. Hope this answers the question.</span>
Answer:
China has made lots of progress in field of science and technology.
Explanation:
It have made great contributions to the world through its invention of various technologies. A lots of technology we use in present era are developed from China. So we can claim China as superpower.
Answer:
It forms a natural barrier between two very different geographic and cultural regions.
Explanation:
A) Helps make the Northeast a fertile farmland.
