Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic), extrusive (volcanic) or hypabyssal. Granite is an intrusive igneous rock which is formed from magma that cools and solidifies within the crust of a planet. They form central cores of major mountain ranges.

Correct Option: D

Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic), extrusive (volcanic) or hypabyssal. Granite is an intrusive igneous rock which is formed from magma that cools and solidifies within the crust of a planet. They form central cores of major mountain ranges.

The water gains kinetic energy as it falls down and loses its potential energy. Assuming no other losses, part of the kinetic energy gain of water is converted into heat, raising the temperature of water.

Correct Option: C

The water gains kinetic energy as it falls down and loses its potential energy. Assuming no other losses, part of the kinetic energy gain of water is converted into heat, raising the temperature of water.

The inner core is the innermost physical layer of the Earth. The asthenosphere is the highly viscous, mechanically weak and ductilely-deforming region of the upper mantle of the Earth. It lies below the lithosphere, at depths between 100 and 200 km below the surface, but perhaps extending as deep as 700 km.

Correct Option: C

The inner core is the innermost physical layer of the Earth. The asthenosphere is the highly viscous, mechanically weak and ductilely-deforming region of the upper mantle of the Earth. It lies below the lithosphere, at depths between 100 and 200 km below the surface, but perhaps extending as deep as 700 km.

Geologically, a fjord is a long, narrow inlet with steep sides or cliffs, created in a valley carved by glacial activity. A fjord is formed when a glacier cuts a U-shaped valley by ice segregation and abrasion of the surrounding bedrock. Glacial melting is accompanied by rebound of Earth's crust as the ice load and eroded sediment is removed. Both the whole coast of Norway and the island of Greenland have many fjords.

Correct Option: D

Geologically, a fjord is a long, narrow inlet with steep sides or cliffs, created in a valley carved by glacial activity. A fjord is formed when a glacier cuts a U-shaped valley by ice segregation and abrasion of the surrounding bedrock. Glacial melting is accompanied by rebound of Earth's crust as the ice load and eroded sediment is removed. Both the whole coast of Norway and the island of Greenland have many fjords.

Manganese ores are used for smelting ferromanganese, cast iron and pig iron containing about 1% Mn. Besides coal and iron ore, the other basic minerals required for the iron and steel industry are manganese, limestone and chromite. Manganese is used in the process of converting pig iron into steel; limestone or dolomite is used in smelting iron ore; and chromite is used as an alloy in steel making.

Correct Option: B

Manganese ores are used for smelting ferromanganese, cast iron and pig iron containing about 1% Mn. Besides coal and iron ore, the other basic minerals required for the iron and steel industry are manganese, limestone and chromite. Manganese is used in the process of converting pig iron into steel; limestone or dolomite is used in smelting iron ore; and chromite is used as an alloy in steel making.