Question

a student observed that the Cockroaches are killed for digestion process by simply putting them into soap water he inquired whether soap is so poisonous . teachers and it is due to its peculiar respiratory system? how?​

Answer 1

Roaches, like other bugs, breathe through micro tubes on their bodies. Spraying them with soapy water will create a thin film around their body that leads to death from suffocation. Just add a little dish soap and warm water into a spray bottle. Shake it well and spray the roaches with them.