The discovery of the cell was possible do to the invention of the Microscope.
Option no. 2 a decrease in the release of oxygen gas
It is not simple because the process of growing crops, it needs more fertilizers, and processing the plants converting it to fuels needs a lot of energy. As much energy is used during the production from natural gas. The way of making biofuels it contains cellulose. Cellulose
_______________ reactions transfer energy to the surroundings, usually as heat.
C. Exothermic