1. The given statement is true.
2. Secondary growth is observed in most of the dicot and gymnospermic root by producing secondary vascular tissue and periderm.
3. Secondary growth is produced by...
Correct Answer - (i) TRUE
(ii) Flase , more than 50,000
(iii) Flase, Ecomsystem diversity is low in Norway because of the ocurrence of a small number of ecosystems.