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Which of the following is/are correct about minerals and rocks (A) Generally metallic minerals are found in igneous and metamorphic rocks. (B) If a rock contains copper then the rock looks blue in color.  (C) Al ore minerals are not rocks. (D) All rocks are not ore minerals. 
The bar graph shows the gold reserves ($ in millions) of a country for the given years. What is the ratio of the number of years in which gold reserves are above average reserves to the number of years in which reserves are less than average reserves?
Which of the following statements is/are correct?
1. Lower Vindhyan group of rocks is extended in the North of Narmada from East to West.
2. Upper Vindhyan group of rocks is extended in the North of Narmada in the form of Kaimur, Rewa and Bhander series.
Which of the following statements about minerals are correct? (A) Minerals are created by natural processes without any human interference (B) Mica and chromite are nonferrous minerals (C) Minerals lying at shallow depths are taken out through open cast mining (D) Minerals are a non-renewable resource
Consider the following: Type of Rocks Process of formation 1.Igneous Rocks Formed out of existing rocks undergoing recrystallization 2.Sedimentary Rocks The result of the deposition of fragments of rocks by exogenous processes. 3.Metamorphic Rocks Solidified from magma and lava   Which of the above pair/s is/are correctly matched?
Consider the statement A, B, C on igneous rocks and choose the correct answer. Statement (A): Sedimentary rocks, when subjected to heat and pressure turn into igneous rocks. Statement (B): These rocks are found both on the earth's crust and deep inside the earth's crust. Statement (C): Granite and Basalt are examples of igneous rocks. 
Consider the following regarding the Igneous rocks:  I. There are no layers in these rocks.  II. Fossils are not found in these rocks.  III. The formation of these rocks takes place only beneath the surface of the earth.  Which among the above is/are correct?
With reference to the management of minor minerals in India, consider the following statements: 1. Sand is a 'minor mineral' according to the prevailing law in the country. 2. State Governments have the power to grant mining leases of minor minerals, but the powers regarding the formation of rules related to the grant of minor minerals lie with the Central Government. 3. State Governments have the power to frame rules to prevent illegal mining of minor minerals. Which of the statements given above is/are correct?
The ratio of number of years, in which the foreign exchange reserves are above the average reserves, to those in which the reserves are below the average reserves is:
Which of the following statement (s) regarding India's coal reserves is/are true ?
I. Over 90% of total reserves are located in the valleys of Son, Damodar, Mahanadi and Godavari
II. Indian coal reserves are characterised by low ash content and high calorific value
III. India has limited prime coking reserves