Anew energy source found in the ocean that is currently very costly to obtain?
a. methane hydrates
b. petroleum
c. plankton

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 represents a potentially vast methane resource for both the United States and the world. Hope this answers the question.

B. to study the spatial patterning of forests and forests fires and plan for better use of fire fighting resources in the u.s.