Question

The corn crop in an area is prone to infestation by larvae from moths that feed on the cornstalks and ears of corn. The techniques used by two farmers to protect the corn crop are described below.

Technique A: Sprayed his corn crop with an insecticide. The insecticide is known to kill all honeybee, butterfly, and moth larvae.
Technique B: Used a genetically modified variety of corn. The plant produces an insecticide which selectively kills only the moth larvae as it feeds on the corn.

Which technique is likely to have less of an impact on the environment?

A.Technique B because it may help humans who consume corn to fight bacteria
B.Technique A because it kills a broader variety of insects to protect the corn
C. Technique B because it preserves the harmless insects and targets only the moth larvae
D.Technique A because insecticide use is better for preserving the environment

Answer 1

Answer: C

Step-by-step explanation:

Let's start by eliminating options B and D as they suggest that technique A has a safer impact on the environment. However, the description clearly states that "The insecticide is known to kill all honeybee, butterfly, and moth larvae." This means that although the larvae are being killed, it is also harming the helpful honeybees and butterflies. This leaves us with options A and C. Upon further inspection, option A does not mention any benefits to humans other than killing the larvae. Therefore, the correct answer must be C.