Geography :- Q1. define metamorphism.
Q2 define geysers.
Q3 state the significance of fossils
Q4 define lithification.
Q5 what does small r represents in the toposheet?
Q6 how are igneous rocks formed?
Answers
Answer:
ans 1 .....Metamorphism is defined as follows: The mineralogical and structural adjustment of solid rocks to physical and chemical conditions that have been imposed at depths below the near surface zones of weathering and diagenesis and which differ from conditions under which the rocks in question originated.
ans2;
A geyser is a rare kind of hot spring that is under pressure and erupts, sending jets of water and steam into the air. Geysers are made from a tube-like hole in the Earth's surface that runs deep into the crust.
ans 3; As pieces of once living things, body fossils are evidence of what was living where and when. Trace fossils are valuable because they "animate" the ancient animals or plants by recording a moment of an organism's life when it was still alive.
ans 4; Lithification, complex process whereby freshly deposited loose grains of sediment are converted into rock. Lithification may occur at the time a sediment is deposited or later. Cementation is one of the main processes involved, particularly for sandstones and conglomerates.
ans 5: sorry i dont know
ans 6:
Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface.