A hypothesis is a supposition or proposed explanation for a system of variables that is based off of limited evidence and mainly research. It is the starting point of an experimental investigation to either prove or disprove an idea.
As for the problem, we will be trying to solve global warming issues with heterotrophic fermentation of algae using three different types of sugars (sucrose, fructose, and glucose) across three different algae types (Porphyridium cruentum, Nannochloropsis occulata, and Isochrysis galbana). The thing that we will be looking for is an increase in mass, which will lead to an increased amount of ethanol. This byproduct of ethanol is a major component in commonplace gasoline. However, because ethanol pollutes less than regular oil when burned, it will help decrease the issue of global warming. On the other hand, common sources of ethanol are more polluting as a whole, so by deriving ethanol from natural sources like algae we can kill two birds with one stone.
If we grow red, green, and brown algae using heterotrophic fermentation with monosaccharides fructose and glucose and disaccharide compound sucrose, then the green algae grown with glucose will yield the greatest mass in ethanol due to glycolic and heterotrophic processes within photosynthetic cells. Since green algae is highly powerful due to the presence of chlorophyll, its ability to heterotrophically ferment should also be as strong.