1. The reason for the decrease in the use of stones as building material is
2. The solidification of molten magma when it reaches the surface of the earth results in the formation of
3. The solidification of molten magma within the earth's crust results in the formation of
4. The process responsible for the formation of sedimentary rocks is;
5. The process responsible for the formation of igneous rocks is;
6. The process responsible for the formation of metamorphic rocks is;
7. Under metamorphism, which of the following changes occurs;
8. The argillaceous rocks have their principle constituents as,
9. The calcareous rocks have their principle constituents as,
10. The siliceous rocks have their principle constituents as,
- Steel and RCC are less bulky and more durable.
- Strength of stones cannot be rationally analysed.
- Stones are not conveniently available in plains.
- All of above.
2. The solidification of molten magma when it reaches the surface of the earth results in the formation of
- Sedimentary rocks.
- Metamorphic rocks.
- Basalts and traps.
- Granite.
3. The solidification of molten magma within the earth's crust results in the formation of
- Sedimentary rocks.
- Metamorphic rocks.
- Basalts and traps.
- Granite.
4. The process responsible for the formation of sedimentary rocks is;
- Solidification of molten mass of silicates below or at the surface of earth.
- Changes in texture or mineral composition or both of igneous and sedimentary rocks due to high temperature and heavy pressures.
- Deposited layers of sand and silt subjected to enormous overburden pressures over geological times.
- None.
5. The process responsible for the formation of igneous rocks is;
- Solidification of molten mass of silicates below or at the surface of earth.
- Changes in texture or mineral composition or both of igneous and sedimentary rocks due to high temperature and heavy pressures.
- Deposited layers of sand and silt subjected to enormous overburden pressures over geological times.
- None.
6. The process responsible for the formation of metamorphic rocks is;
- Solidification of molten mass of silicates below or at the surface of earth.
- Changes in texture or mineral composition or both of igneous and sedimentary rocks due to high temperature and heavy pressures.
- Deposited layers of sand and silt subjected to enormous overburden pressures over geological times.
- None.
7. Under metamorphism, which of the following changes occurs;
- granite changes into gneiss.
- sandstone changes into quartzite.
- limestone changes into marble.
- All of above.
8. The argillaceous rocks have their principle constituents as,
- Lime.
- Clay.
- Sand.
- None of above.
9. The calcareous rocks have their principle constituents as,
- Lime.
- Clay.
- Sand.
- None of above.
10. The siliceous rocks have their principle constituents as,
- Lime.
- Clay.
- Sand.
- None of above.