The Past and Future of a Crop Quiz

What are organisms that eat plants called?

• Producers

• Consumers

• Decomposers

• Predators

What do plants combine with water in the presence of sunlight to make glucose?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen

What is the main purpose of corn today?

• Decoration

• Fuel for cars

• Food for humans and livestock

• Building materials

What is ethanol primarily used for in the United States?

• Food products

• Export

• Fuel and energy

• Medicine

What is the process called when humans learned to grow certain plants?

• Domestication

• Cultivation

• Harvesting

• Irrigation

What is the main component of photosynthesis besides water and sunlight?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen

What is the relationship between humans and corn today?

• Corn is used only for decoration

• Corn is a major crop for food and energy

• Corn is not used by humans

• Corn is only used for animal feed

According to Kelly Gold, what is one reason America should continue to use corn crops to produce ethanol?

• It is cheaper than other fuels

• It is a cleaner-burning fuel

• It is easier to produce

• It is more popular

What environmental benefit does ethanol provide, according to the text?

• Increases air pollution

• Reduces carbon emissions

• Increases soil erosion

• Reduces water usage

What is one concern mentioned by Brett Berger about using corn for ethanol?

• It is too expensive to produce

• It reduces food supply

• It is not popular among farmers

• It increases water pollution