Answer:
natural gas from fracking
Explanation:
Biomass fuel is made from organic material. Natural gas is not considered a source of biomass fuel, as it itself is fuel.
Communism. The founding principles of communism are that one must share and that one does not own private property.
<span>longitudinal waves traveling along the horizontal direction </span>
I believe the answer is E. d41 because it goes a11, A12, b21, B22, c31, C32, then it goes lowercase d41 and then the next one is going to upper case D42.
Hope this helps.
