Question

1.Why is the candle in bell jar P burning?(for 3 marks or4 marks)(/Meant for 3-4 paras/)​

Answer 1

Answer:

Oxygen gas is essential for burning. In bright sunlight, the potted plant in bell jar B produces oxygen by the process of photosynthesis. Thus, the level of oxygen in bell jar B is higher . and so, the candle burns for a longer time (because of the availability of more oxygen gas).