To reduce the impact of biofuel Oklahoma scientists are experimenting with making biofuels out of crops such as
production on food prices.
A. switchgrass
B. corn
C. soybeans
D. sugarcane

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.