1. Which of the following are true with respect to the Indian Peninsular Plateau?The southern plateau block is formed mainly of granite and gneissThe Deccan lava plateau is an elevated tableland consisting of horizontally arranged lava sheetsThe Malwa plateau dominates the Vindhyam scraps, forming the northern flank of the plateauThe trough of the Narmada and Tapti are interposed between the Vindhyan and the Satpura ranges