बिहार में कौन सी भूगर्भीय चट्टान संरचनाएं क्षैतिज रूप से बिछी अवसादी चट्टानों (जैसे बलुआ पत्थर और चूना पत्थर) से बनी हैं और दक्षिण-पश्चिमी जिलों कैमूर और रोहतास में स्थित हैं?

Which of the following groups of districts in south-eastern Bihar is primarily underlain by Dharwar rock formations?

Which geological rock formation is located in south-western Bihar, primarily found in the Rohtas and Kaimur districts?

How were the Tertiary rock formations in northern Bihar primarily formed?