The Deccan Trap Formation was caused by:

Correct answer: flood basalt eruption

Explanation: ✅ Correct Answer: D) flood basalt eruption 📚 Explanation: The massive volcanic plateau known as the Deccan Trap was formed during the late Cretaceous period by intense flood basalt eruptions through fissures in the earth's crust. This volcanic activity spread layers of highly fluid basaltic lava over a vast area. Over millions of years, these volcanic layers cooled and weathered down to form the fertile black cotton soil (Regur) characteristic of central and western India. It stands as one of the largest volcanic features on Earth.