Ascientist who works for a
company that makes products
from plants publishes a paper
on energy efficiency. they
claim that converting corn to
ethanol is more efficient than
solar power. describe their
possible bias.

In the given case, considering that the person works at a place, which makes products out of plants, it appears that the person is alluring in promoting his company. Thus, he is biased by advertising for something his company excels in doing.  

He also has more information regarding plant-based products in comparison to the solar power, therefore, he is familiar more about regarding what the plant-based products can do in contrast to the solar power.  

is this for the e2020 class