CIE iGCSE Co-Ordinated Science B10. Diseases and immunity Exam Style Questions Paper 2
▶️ Answer/Explanation
The insects respire, taking in oxygen and releasing carbon dioxide.
The soda lime absorbs all the carbon dioxide produced, so the overall gas volume in the tube decreases.
This drop in gas volume pulls the coloured liquid up towards the tube, so the level at X goes down.
✅ Answer: (A)
The soda lime absorbs all the carbon dioxide produced, so the overall gas volume in the tube decreases.
This drop in gas volume pulls the coloured liquid up towards the tube, so the level at X goes down.
✅ Answer: (A)
Question
Which row is correct about the components of tobacco smoke and their effects?
▶️Answer/Explanation
Ans: D