Consider the following rocks:

  1. Anthracite coal
  2. Shale
  3. Marble

 Which of the above is/are sedimentary rock(s)?

Answer: [B] 2 Only

Marble is a metamorphic rock. Similarly, anthracite coal is a metamorphic rock. Other examples of metamorphic rocks include anthracite, quartzite, marble, slate, granulites, gneiss and schist. Examples of sedimentary rocks are: Conglomerate, Breccia, Sandstone, Siltstone, Limestone, etc. Coal is an organic sedimentary rock.

This question is a part of GKToday's Integrated IAS General Studies Module