Biofuels History and Types
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Questions and Answers

What is the main objective of second-generation biofuels?

  • To increase competition with food crops
  • To genetically modify algae to capture more CO2
  • To reduce competition with food crops and optimize resource use (correct)
  • To use non-food feedstocks such as algae

What is the aim of fourth-generation biofuels?

  • To maximize efficiency and avoid deforestation
  • To use non-food feedstocks such as wood and organic waste
  • To capture more CO2 and yield larger amounts of oils (correct)
  • To increase competition with food crops

Which biofuel has a high Cetane Number and is suitable for blending with existing infrastructure?

  • Biochar
  • Bioethanol
  • Biogas
  • Biodiesel (correct)

What is the process involved in the conversion of biomass into solid or gas fuel?

<p>Thermal breakdown under inert conditions (D)</p> Signup and view all the answers

Which current use of biofuels is mentioned in the text?

<p>Biodiesel in developing countries (B)</p> Signup and view all the answers

What are the most common biofuels mentioned in the text?

<p>Corn ethanol, biodiesel, and biogas (C)</p> Signup and view all the answers

When was Henry Ford's Model T designed for ethanol?

<p>Early 1900s (C)</p> Signup and view all the answers

Why was the main objective of first-generation biofuels?

<p>To reduce greenhouse gas emissions and promote energy security (D)</p> Signup and view all the answers

What has led to the exploration of alternative sources for biofuel feedstock in the 2010s?

<p>Feedstock diversification enhancing biofuel efficiency (A)</p> Signup and view all the answers

How many generations of biofuels have been developed according to the text?

<p>4 generations (B)</p> Signup and view all the answers

What are the main objectives of first-generation biofuels?

<p>Promote energy security and economic development in rural areas (D)</p> Signup and view all the answers

What is the significance of feedstock diversification in the 2010s?

<p>It broadened the biofuel feedstock base (C)</p> Signup and view all the answers

What did the 21st-century policies promote in relation to biofuels?

<p>Regulations and incentives for large-scale biofuel production (D)</p> Signup and view all the answers

What are the potential benefits of fourth-generation biofuels?

<p>Using alternative feedstock and improving biofuel efficiency (B)</p> Signup and view all the answers

What is the primary contribution of biofuels mentioned in the text?

<p>Enhancing energy security and diversifying the energy mix (B)</p> Signup and view all the answers

What is the main objective of third-generation biofuels?

<p>To produce more energy per hectare than conventional plants (B)</p> Signup and view all the answers

What are the potential risks associated with the fourth generation of biofuels?

<p>Release of GMOs into the environment (A)</p> Signup and view all the answers

Which biofuel has a high Cetane Number and is suitable for blending with existing infrastructure?

<p>Biodiesel (D)</p> Signup and view all the answers

What is the aim of using non-food feedstocks such as wood, organic waste, and certain biomass crops in second-generation biofuels?

<p>To reduce competition with food crops and optimize resource use (C)</p> Signup and view all the answers

What is the current use of biodiesel mentioned in the text?

<p>Power generation at maritime transportation (B)</p> Signup and view all the answers

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