Which of the following accurately describes a trade-off of using biomass as a fuel?
A. It is easy to produce biomass, but burning it as a fuel generates
radioactive waste.
B. The living things used to produce biomass are plentiful and grow
quickly, but burning biomass generates air pollution.
C. Burning biomass produces no air or water pollution, but it is expensive to collect the
necessary materials.
D. It is cheap to produce biomass, but it is a nonrenewable resource.
PLEASE HELP!!

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.