Base on my own learning, fossil fuel is hard to get or let's say it is longer to process which will make its price very expensive. Fossil fuel, from the word itself, comes from fossils. Just imagine how long should we wait before getting oil from a dead today?
fossilfuel
if you mean why is a desktop preferred over a laptop. then i would answer that they aren't and that laptops are preferred because of their convenience
There are many ways in which you could get energy from biofuel. You could for example burn the biofuel substance.
Biofuel is energy made by heat.
Different types of plants can be turned into biofuel
It's supposed to be from renewable resources, but as far as sustainability, there is some controversy over that.
Different types of plants can be turned into biofuel
the answer is biofuel
Interval estimates are generally to be preferred over point estimate
biofuel is green because it does not uses fossil fuels to do things.
Straw can be a component used in the manufacture of biofuels, but it's not a biofuel in itself.
An effect of biofuel is the high amount of water usage that is needed for biofuel producers and putting stress on fresh water supplies. Another effect higher demand for food-biofuel crops, but there will be high prices for consumers to purchase them.