What is the common geographical effect of Mahanadi Godavari Krishna and Kaveri on the eastern coast?

Correct answer: They form extensive deltas

Mahanadi, Godavari, Krishna, and Kaveri are major rivers flowing eastward across the Indian peninsula. They carry large quantities of soil and other sediments from their drainage areas. Near the eastern coast, their flow becomes slower and divides into smaller distributaries. The deposited sediment builds broad, fertile deltaic plains at the river mouths.

Therefore option A is correct: these rivers form extensive deltas on the eastern coast. They do not all drain into the Arabian Sea; they generally enter the Bay of Bengal. Their work is not limited to making waterfalls, and they do not end the coastal plain. The eastern coastal plain is especially known for broad river deltas, while some western rivers more commonly form estuaries because of the narrower coastal plain and different relief. The supplied answer is accurate.