Question

question 6 of 10 which of these energy resources is sustainable? a. coal b. biofuel c. oil d. wind

Explanation:

Sustainable energy is renewable and doesn't deplete finite resources. Coal (A) and Oil (C) are fossil fuels (non - renewable). Biofuel (B) can have sustainability issues. Wind energy (D) is renewable, as wind is a natural, replenishable resource.

Answer:

D. Wind