God placed many interesting and valuable treasures within the Earth's layers of sedimentary rock. Identify each of these below.
🔴 (a) is a black or brown rock-like substance found in layers of rock all over the world, and in many countries, it is burned to heat homes.
🔴 (b) is the most valuable resource in the world, and in its natural source, it's called (c) or crude oil.
🔴 A flow of warm or hot water that bubbles up to the surface in a spring is called warm or (d) . An underground spring that shoots streams of boiling water is a (e) .