Q. 12

i) Name the processes noted as No. 1 and 3.

ii) Define process 1.

Answer :

(i) Process 1 represents Photosynthesis and Process 2 represents respiration


In process 1 as shown in the figure, green plant is taking carbon dioxide from the atmosphere, which is nothing but an event of photosynthesis. While in process 2 animal is releasing carbon dioxide into the atmosphere in the process of respiration.

(ii) Process 1 is photosynthesis. Photosynthesis is defined as the process by which green plants synthesise their food by taking carbon dioxide from air and water from ground in the presence of sunlight.

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