Question 1
Historical theoretical question: “To prevent mosquitoes breeding in your aquarium, you can put ….” The choices below reproduce the 2009 paper, not safe aquarium-care instructions. Do not try these additions in an aquarium containing living animals. Discuss the intended mechanism and the safety problem.
A. A teaspoon of salt per liter of water
B. A drop of concentrated detergent per liter of water
C. A glass of sand in 5 liters of water
D. A teaspoon of sugar per liter of water
E. A teaspoon of oil per liter of water
A. A teaspoon of salt per liter of water
B. A drop of concentrated detergent per liter of water
C. A glass of sand in 5 liters of water
D. A teaspoon of sugar per liter of water
E. A teaspoon of oil per liter of water