Biofuel Basics Quiz

What are the two most common types of biofuels in use today?

• Solar and wind energy

• Hydrogen and natural gas

• Methanol and biogas

• Ethanol and biodiesel

What is the primary source of ethanol in the United States?

• Wood chips

• Algae

• Sugarcane

• Corn starch

What is the most common blend of ethanol used in gasoline in the United States?

• E20

• E10

• E85

• E50

What is biodiesel primarily made from?

• Nuclear materials

• Solar and wind energy

• Coal and natural gas

• Vegetable oils and animal fats

Tags

NGSS.HS-ESS3-2

NGSS.HS-ETS1-1

What is the process called that uses microorganisms to convert plant sugars into ethanol?

• Fermentation

• Gasification

• Hydrolysis

• Pyrolysis

What is the preferred thermal process for converting wet feedstocks like algae into bio-crude oil?

• Fermentation

• Gasification

• Pyrolysis

• Hydrothermal liquefaction

Tags

NGSS.HS-ETS1-3

What is the main purpose of upgrading intermediates in biofuel production?

• To enhance photosynthesis

• To increase biomass growth

• To reduce carbon emissions

• To produce a finished product

What are 'drop-in' fuels?

• Fuels made only from corn

• Fuels that require new engines

• Fuels that are not renewable

• Hydrocarbon biofuels compatible with existing infrastructure

Tags

NGSS.HS-ETS1-3

Which process involves heating biomass rapidly at high temperatures in an oxygen-free environment?

• Pyrolysis

• Gasification

• Hydrothermal liquefaction

• Fermentation

What is the main component of synthesis gas (syngas) produced during gasification?

• Nitrogen and helium

• Carbon monoxide and hydrogen

• Methane and oxygen

• Carbon dioxide and water vapor