D. Answer the following questions in brief.
1. What is the special feature of sedimentary rocks?
2. How are metamorphic rocks formed?
3. What is lava?
4. Why are igneous rocks called the primary rocks?
5. What are sediments?
Answers
Answer:
Answers as follows
Explanation:
1 ) Sedimentary rocks are formed by sediment that is deposited over time, usually as layers at the bottom of lakes and oceans.
Sedimentary rocks contain important information about the history of the Earth. They contain fossils, the preserved remains of ancient plants and animals. Coal is considered a type of sedimentary rock. The composition of sediments provides us with clues as to the original rock.
2 ) Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
3 ) Lava is a hot molten or semi-fluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
4 ) Igneous rocks are known as primary rocks as they are formed through the cooling and solidification of magma or lava. ... All other rocks are derived from them, so they are also called as parent rocks..
5 ) Sediments are solid materials that are moved and deposited in a new location. Sediment can consist of rocks and minerals, as well as the remains of plants and animals. It can be as small as a grain of sand or as large as a boulder. Sediment moves from one place to another through the process of erosion
Answer:
So these are the answers of your questions. Hope it helps you.
