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Answer :
(a) The height of the plant A
(i) after 2 weeks was 7 cm.
(ii) after 3 weeks was 9 cm.
(b) The height of the plant B
(i)after 2 weeks was 7 cm
(ii)after 3 weeks was 10 cm.
(c) The plant A grew up 2 cm during the 3rd week.
(d) The plant B grew up 3 cm from the end of the 2nd week to the end of the 3rd week.
(e) During second week, plant A grows the most.
(f) During the first week, plant B grows the most.
(g) The height of the two plants were same at the end of the 2nd week.