Rocks and Rock Types Q & A
(B) Which of the following monuments are built in igneous rock?
(1) The Taj Mahal
(2) Fort Raigad
(3) The Red Fort
(4) Ellora Sculpture
Ans: Ellora Sculpture.
(C) Find the differences between:
(1) Igneous and sedimentary rocks
Ans:
Igneous rocks | Sedimentary rocks |
(1) Igneous rocks are rocks formed by cooling and solidifying of molten materials. (2) Igneous rocks are hard and homogeneous. (3) Examples: Basalt, pumice | (1) Rocks that are formed through deposition and compaction of sediments, especially rock particles transported by rivers, glaciers, wind, etc are called sedimentary rocks. (2) Sedimentary rocks are generally brittle and light weight. (3) Examples: Sandstone, limestone, shale, corals |
(2) Sedimentary and metamorphic rocks
Ans:
Sedimentary rocks | Metamorphic rocks |
(1) Rocks that are formed through deposition and compaction of sediments, especially rock particles transported by rivers, glaciers, wind, etc., are called sedimentary rocks. | (1) Rocks are formed due to the process of metamorphosis are called metamorphic rocks. |
(2) One may find fossils in sedimentary rocks. (3) Sedimentary rocks are brittle and light weight. Examples: Shale, corals | (2) Metamorphic rocks do not contain fossils. (3) Metamorphic rocks are heavy and hard. Examples: Marble, slate. |
(3) Igneous and metamorphic rocks
Ans:
igneous rocks | Metamorphic rocks |
(1) Igneous rocks are rocks formed by cooling and solidifying of molten material. (2) Igneous rocks are hard and homogeneous. (3) Examples: Basalt, pumice | (1) Rocks formed due to the process of metamorphosis are called metamorphic rocks. (2) Metamorphic rocks are heavy and hard. (3) Examples: Gneiss, slate |
(D) Which types of rocks are predominantly found at the following locations?
(1) Central Maharashtra:- Basalt.
(2) South Konkan:- Laterite and granite.
(3) Vidarbha:- Basalt, granite and sedimentary rocks.