Observe the figure given below carefully and answer the following questions

cbse
cbse-class-7-science
respiration-organism

#1

Observe the figure given below carefully and answer the following questions.
image

  1. In which jar, will the amount of C02 be the highest and why?
  2. In which jar, will the amount of C02 be the lowest and why?

Answer:

  1. ‘C The mice kept under the jar will breathe out C02 continuously increasing its amount in the bell jar.
  2. ‘A’. In jar A’, the C02 released during respiration is used by the plants during photosynthesis.