Question 17

This created a revolution in farming practices.

The sentence best fits after sentence 7, as it highlights the significant impact that the development of glyphosate-resistant crops had on farming practices, marking a transformative moment in agriculture.

A) After sentence 2

Placing the sentence here would not convey the intended context effectively, as sentence 2 discusses weeds attacking plants indirectly without any reference to new farming practices or technologies. The focus is on the competition between weeds and crops rather than advancements in agriculture.

B) After sentence 7

This is the ideal placement, as sentence 7 discusses the excitement among farmers regarding glyphosate-resistant crops, which represents a major shift in farming technology. Inserting the sentence here emphasizes the revolutionary nature of this development in farming practices.

C) After sentence 9

While sentence 9 discusses the emergence of "super weeds" and the challenges that arise from herbicide resistance, it does not effectively highlight the revolutionary aspects of farming practices. Positioning the sentence here would disrupt the flow of discussing the consequences of the new technology rather than its initial impact.

D) After sentence 12

This placement would not be appropriate, as sentence 12 focuses on the ongoing issues with resistant weed species. The revolutionary change in farming practices occurred earlier with the introduction of glyphosate-resistant crops, making this position less relevant to the core idea of transformation in agriculture.

Conclusion

The sentence "This created a revolution in farming practices" is most appropriately placed after sentence 7, where it can effectively convey the substantial shift in agricultural methods resulting from the introduction of glyphosate-resistant crops. Other options fail to adequately connect the revolutionary impact of this technology to the surrounding context, focusing instead on the challenges or unrelated topics.