Name the second largest river in India ? why is it called Vridha Ganga

the largest river in India is the Brahmaputra and the second largest is the Indus River.

Explanation:  

Its called Vridha Ganga as the Godavari, India's second - longest river after the river Ganga and is one among the peninsular rivers. The river Godavari is often referred to as Vridha Ganga because of its large size and extent among the peninsular rivers.

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the correct answer would be true friction causes the faults to slip or collide