- Home
- Current Questions
- Biofuels
Biofuels
Consider the following pairs with reference to the categories of biofuels:
- First Generation Biodiesel: produced from sugar, starch, vegetable oil
- Second Generation Biofuels: produced from non-food crops
- Third Generation Biofuels: require cultivable/arable land for production
- Fourth Generation Biofuels: crops are genetically engineered to take in high amounts of carbon
Which of the pair(s) is/are correct?
A |
1, 2 and 3
|
|
B |
2, 3 and 4
|
|
C |
1,2 and 4
|
|
D |
1, 2, 3 and 4
|
Your Ans is
Right ans is C
Your Answer Is Correct
Your Answer Is Wrong
Explanation :
Context: Recently, Stardust 1.0 has been launched from USA, which became the first commercial space launch powered by biofuel.
Explanation:
Biofuels
- Any hydrocarbon fuel that is produced from an organic matter (living or once living material) in a short period of time is considered a biofuel.
- Biofuels may be solid, liquid or gaseous in nature.
First Generation Biofuels
- Fuels produced from sugar, starch, vegetable oil, or animal fats utilizing conventional technology.
- Examples: Bioalcohols, Biodiesel, Vegetable Oil, Bioethers, Biogas.
Second Generation Biofuels
- Fuels made from non-food crops such as cellulosic biofuels and waste biomass i.e. stalks of wheat and corn, and wood).
- Example: cellulose ethanol
Third Generation Biofuels
- Fuels made from micro-organisms such as algae.
- It doesn’t require cultivable/arable land for production.
- Example: Butanol
Fourth Generation Biofuels
- In the production of these fuels, crops that are genetically engineered to take in high amounts of carbon are grown and harvested as biomass.
- The crops are then converted into fuel using second generation techniques.
- Like the third generation, fourth-generation biofuels are made using non-arable land. However, unlike the third, they do not need the destruction of biomass.
- Examples: electrofuels and photo-biological solar fuels
News Crux
News Crux
News Crux
- Appointment & Resignation
- Art/Culture/Heritage
- Awards In News
- Bill/Act/Amendment
- Defence
- Defence/Military Exercises
- Famous Books
- Important Days/Weeks
- Important Decade
- Miscellaneous
- Obituary
- Organisation In News
- Persons In News
- Places In News
- Plans & Policy
- Reports/Committee/Commission
- Scheme & Programme
- Species In News
- Summit, Seminars & Conferences
- Survey/Index
- Web Portal & Apps
State In News
State In News
State In News
- Andhra Pradesh
- Arunachal Pradesh
- Assam
- Bihar
- Chhattisgarh
- Delhi
- Goa
- Gujarat
- Haryana
- Himachal Pradesh
- Jammu And Kashmir
- Jharkhand
- Karnataka
- Kerala
- Ladakh
- Madhya Pradesh
- Maharashtra
- Manipur
- Meghalaya
- Mizoram
- Nagaland
- Odisha
- Punjab
- Rajasthan
- Tamil Nadu
- Telangana
- Tripura
- Uttar Pradesh
- Uttarakhand
- West Bengal