(i) Core
(ii) Minerals
(iii) Rocks
(iv) Clay
(v) Sial
(a) Earth's surface
(b) Used for roads and buildings
(C) Made of silicon and alumina
(d) Has definite chemical composition
(e) Innermost layer
(1) Changes into slate
(g) Process of transformation of the rock
VIRONMENT
Answers
Core : the central, innermost, or most essential part of anything. Also called magnetic core. Electricity. the piece of iron, bundle of iron wires, or other ferrous material forming the central or inner portion in an electromagnet, induction coil, transformer, or the like.
Minerals : A mineral is a naturally occurring inorganic solid, with a definite chemical composition, and an ordered atomic arrangement.
Rocks : Rocks are a natural mass of mineral matter that makes up the earth's crust. They can be of different colour, size and texture. They are of the following types.
Clay : a stiff, sticky fine-grained earth that can be moulded when wet, and is dried and baked to make bricks, pottery, and ceramics.
Sial : the material of the upper or continental part of the earth's crust, characterized as relatively light and rich in silica and alumina.
Earth's Surface : Most of the Earth surface, about 70%, is covered with water. The remaining 30% is made up of the seven continental landmasses. Underneath the water that fills the oceans, and the dirt and plants that cover the continents, the Earth's surface layer is made of rock.
Answer:
1 clay
2rocks
3sial
4minerals
5core
7minerals