Available Answers

1. 1.

   Multiple Choice Questions.

   1. Inorganic means.
      1. originated from plants
      2. made from sand, gravel and chemical compounds
      3. originated from animals
      4. Hand made
   2. Uraninite is a primary ore for.
      1. Gold
      2. Uranium
      3. Iron
      4. Silver
   3. Metallic minerals.
      1. are found in sedimentary rocks
      2. contain metal
      3. have no shine
      4. are fossils
   4. The examples of non-metallic minerals are
      1. limestone and salt
      2. clay and copper
      3. mica and copper
      4. silver and gold
   5. One of the varieties of iron ore is.
      1. Carnotite
      2. Sulfur
      3. Smelting
      4. Magnetite
2. 2.

   Fill in the blanks.

   1. Scraps of metal can be ___________.
   2. ___________ mines are located close to the land surface.
   3. Minerals are ___________ resource.
   4. Decay of organic matter forms ___________, ___________ and ___________.
   5. The first metal used by the ancient people was ___________.
   6. Hatti and Kolar mines are known for ___________.
3. 3.

   Write True or False.

   1. Pure silver doesn't require alloy to make tableware.
   2. Uranium is a toxic metal.
   3. Coal is a non-metallic mineral.
   4. Minerals come from pitchblende rocks.
   5. Ore-dressing is separating mineral from ore.
4. 4.

   Match the columns. 

   Column A	Column B
   a. Mercury	i. haematite
   b. Pitchblende	ii. petroleum
   c. Cambay basin	iii. liquid metal
   d. Les Baux	iv. uranium ore
   e. Iron ore	v. bauxite

    

5. 5.

   Read the clues and unscramble the letters to guess the answers.

   1. An ore of iron- MGNETAEIT .
   2. These are made vertically and horizontally in subsurface mines- ASHFT.
   3. A precious metal used in the making of battery-SERILV.
   4. A non-metallic mineral used in paints as a colour pigment- MCIA.
6. 6.

   What is ore-dressing?