It is formed of alluvial deposits.
Explanation
The Peninsular Plateau is a tableland composed of old crystalline, igneous, and metamorphic rocks. It was formed due to the breaking and drifting of the Gondwanaland, making it one of the oldest landmasses on the Earth’s surface.- It is composed of igneous and metamorphic rocks. is a correct feature: The plateau is primarily composed of old crystalline, igneous, and metamorphic rocks, which is characteristic of ancient shield areas.
- It has gently rising hills and wide valleys. is a correct feature: Due to prolonged erosion over geological time, the plateau features broad and shallow valleys and rounded hills.
- It is formed of alluvial deposits. is an incorrect feature: The Peninsular Plateau is not formed of alluvial deposits. Alluvial deposits are the defining feature of the Northern Plains, formed by sediments brought down by the Indus, the Ganga, and the Brahmaputra rivers. The plateau is a rocky terrain.
- It is one of the most stable land blocks. is a correct feature: Geologically, the Peninsular Plateau is considered one of the most stable land blocks on earth, having remained largely unaffected by major tectonic folding since its formation.
Key Takeaway: The Peninsular Plateau is an ancient, stable geological shield composed of hard rocks, distinct from the sediment-filled, alluvial Northern Plains.