Consider the following statements :

Statement I : Of the two major ethanol producers in the world, i.e., Brazil and the United States of America, the former produces more ethanol than the latter.
Statement II : Unlike in the United States of America where corn is the principal feedstock for ethanol production, sugarcane is the principal feedstock for ethanol production in Brazil.

Which one of the following is correct in respect of the above statements?

(a) Both Statement I and Statement II are correct and Statement II explains Statement I
(b) Both Statement I and Statement II are correct but Statement II does not explain Statement I
(c) Statement I is correct but Statement II is not correct
(d) Statement I is not correct but Statement II is correct

The correct answer is (d) Statement I is not correct but Statement II is correct.

Explanation

Statement I: Not Correct. This statement is factually incorrect. While the United States and Brazil are the two largest ethanol producers, the United States produces significantly more ethanol than Brazil. The US has been the world’s #1 producer for many years.
Statement II: Correct. This statement accurately describes the primary feedstocks used by the two countries. The US ethanol industry is built almost entirely on corn (maize). In contrast, Brazil’s highly efficient ethanol industry is based on sugarcane.

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The Global Ethanol Market: US vs. Brazil

This question highlights the two dominant players in the world’s biofuel market. Together, the US and Brazil produce over 80% of the world’s ethanol.

Production Volume: The United States is the clear leader, producing roughly 15-16 billion gallons annually. Brazil is second, producing around 8-9 billion gallons.
Feedstock and Efficiency:
- United States (Corn): The US uses corn kernels. This is a starch-based production. The corn’s starch must first be broken down into sugars (using enzymes) and then fermented into alcohol. This is a more complex and energy-intensive process.
- Brazil (Sugarcane): Brazil uses sugarcane. The sugarcane juice already contains simple sugars (sucrose). This juice can be fermented directly into alcohol, making the process much more efficient. Furthermore, the leftover sugarcane waste (called “bagasse”) is burned to power the distillation plants, making the process nearly energy self-sufficient.
Domestic Use:
- In the US, ethanol is primarily used as a 10% blend in gasoline (E10) to comply with the Renewable Fuel Standard (RFS).
- In Brazil, ethanol is a cornerstone of the national energy policy. Nearly all cars are “flex-fuel,” meaning they can run on 100% gasoline, 100% ethanol (E100), or any blend in between.