Available Answers

1. 1.

   Tick (√) the correct option.

   1. An igneous rock that is used for construction of roads is _______________.
      1. granite
      2. pumice
      3. basalt
   2. A rock used for making surgical instruments is _______________.
      1. pumice
      2. obsidian
      3. marble
   3. The mineral 'calcite' is present in _______________.
      1. conglomerate
      2. limestone
      3. sandstone
   4. An example of a metamorphic rock is _______________.
      1. marble
      2. granite
      3. sandstone
   5. Bauxite is the ore of _______________.
      1. aluminium
      2. copper
      3. iron
2. 2.

   Match the following.

   a. Quartzite	i. Mica
   b. Diamond	ii. Cement
   c. Gneiss	iii. Black board
   d. Slate	iv. Glass industry
   e. Limestone	v. Gemstone

    

3. 3.

   Define Lava.
4. 4.

   Define Igneous rock.
5. 5.

   Define Magma.
6. 6.

   Define Minerals.