1.Why does pumice have holes and pockets?
2.Explain how sadimentary rocks are formed.
Answers
Answer:
It is the fact that when the lava is released from the huge pressure below ground, large amounts of gas boil out from the rock and become trapped bubbles. Just like the foam on a carbonized drink. Except that the rock solidifies before the bubbles burst, trapping the foam form.
Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This sediment is often formed when weathering and erosion break down a rock into loose material in a source area.
Ans 2.
Ans 1. In this case, when the lava is released with huge pressure under the ground then large amount of gas boils out through the rocks and become trapped bubbles. Except the rocks solidifies before the bubbles burst.