geomorphology & earth landforms section 5 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (b)

Answer: (d)

• Basalt is a dark-coloured, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals. It most commonly forms as an extrusive rock,
• Granite is a light-coloured Intrusive igneous rock with grains large enough to be visible with the unaided eye. It forms from the slow crystallization of magma below Earth’s surface.
• Sandstone (sometimes known as arenite) is a classic sedimentary rock composed mainly of sand-sized minerals or rock grains.
• Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.

Answer: (d)

Answer: (d)

Conglomerate is a type of sedimentary rock which is coarse-grained and composed of rounded fragments embedded in a matrix of cementing material such as silica.

Answer: (b)

Around 200 million years ago (also known as the Middle Permian Period), an extensive sea stretched along the latitudinal area presently occupied by the Himalayas. This sea was named the Tethys. Around this period, the super continent Pangaea began to gradually split into different land masses and move apart in different directions.