That’s a good question I’m glad you asked. Bio-fuels are actual fuels that forms well when biological matter decomposes. Bio-fuel exist in gas, solid, and liquid, in all of the three states of matter, and they are mostly deprived from plants. >b>Okay here’s the difference between fossil fuels and bio-fuels Another great question. 1. Bio-fuels can be made super fast, in as little as a few days or so, while Fossil fuels takes a lifetime time to build, such as a million years. Interesting huh? Bio-fuels are different from fossil fuels in the following ways: 2. Bio-fuels are definitely renewable sources of energy while fossil fuels are not. 3. Did you know that fossil fuels creates very large amounts of unsafe pollution while Bio-fuels are much safer? Well yes, it’s true. What are different types of bio-fuels? Here’s the four types of bio-fuels… 1. First generation. 2. Second generation. 3. Third generation. 4. Fourth generation Now the first generation fuels are deprived from fats, animal fats, sugar, starch, and vegetables, and obviously these foods are in return deprived from food-crops. Three types of bio-fuels are biogas, bio-diesel, and vegetable oil. Alright the second generation of bio-fuels mainly comes from waste biomass. This makes it a much more balanced option when compared to the first-generation bio-fuels. The second generation of bio-fuels consist of different kinds of diesels and alcohols from wood. Now we’re on the third generation of bio-fuels. The third generation bio-fuels are deprived from algae. Algae are great at creating these bio-fuels. The algae fuels are great! and are extremely friendly because they can decompose into the soil without harming it. Bio-fuels here in the fourth generation are comprised by a method in which micro-organisms are raised to work with carbon dioxide to generate fuel. Does Bio-fuels have any Advantages? Bio-fuels prove advantageous in the following ways: 1. Bio-fuels really does lessens the burden on less valued, vanishing fossil fuels. 2. They are friendly to the environment, and one of the greatest advantages is that they help reduce carbon emissions into the atmosphere. 3. Extremely cost effective. Disadvantages of bio-fuels Bio-fuels have received criticism for a lot of reasons, and here’s a couple of them… 1. There has been a long debate on the usefulness of the first generation fuels when it’s compared to the lack of food they caused. They generate food from fuel crops and it makes them unworthy for a human to consume. A disadvantage of bio-fuels is that it requires acres of farming land.