Changing of colour of a rock into yellow or red is due to

Related MCQs

• Which of the following statements is/are correct? 1. The major constituent mineral of granite rock is quartz. 2. The major constituent mineral of sandstone rock is feldspar. 3. The major constituent mineral of limestone rock is dolomite. Select the correct answer using the code given below: [NDA 2011]
• Igneous rocks are formed from molten rock material. Which one of the following is not an igneous rock?
• The removal of rock, layer by layer due to weathering is called: [NDA 2001]
• Consider the following statements: 1. Igneous rocks are classified into Extrusive and Intrusive rocks. 2. Sedimentary rocks are also called as Primary rocks 3. Marble is an example of Metamorphic rocks 4. Coal is a sedimentary rock Which of the above statements is/are correct? [NDA 2002]
• The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from:
• Which among these is a metamorphic rock?
• The capacity of rock to allow water to pass through it is called
• In an artesian well, in what order the rock-layer are generally found? (from bottom to surface)
• The most common igneous rock is
• Molten rock below the surface of the Earth is called?