I think because it’s a one-mark question, children are just expected to reply that oil forms a barrier and prevents air from entering the water, so the mosquitoes lack the air to stay alive.

But since we have a hot housing culture here, the tuition centres and enrichment centres will drill into the kids that larvae have breathing turned, and our well-trained kids will reply as such haha

Are there nationwide exams for sixth graders in South Korea? Will love to look at the questions n compare n contrast syllabus outcomes, esp since I can use ChatGPT to translate questions these days