Available Answers

1. 1.

   Answer the questions given by choosing the most appropriate alternative.

   1. Which of the following is not a type of weathering?
      1. Chemical
      2. Biological
      3. Mechanical
      4. Historical
   2. Which process is very similar to the rusting of Iron?
      1. Oxidation
      2. Hydration
      3. Exfoliation
      4. Carbonation
   3. Which process is known as onion peeling?
      1. Granular disintegration
      2. Frost shattering
      3. Block disintegration
      4. Exfoliation
   4. Which of the given factors is not responsible for soil formation?
      1. Climate
      2. Human activities
      3. Parent rock material
      4. Subsoil
   5. Which of the following factors help in controlling soil erosion?
      1. Overgrazing
      2. Afforestation
      3. Weathering
      4. Deforestation
2. 2.

   Fill in the blanks.

   1.  Rock is solid material composed of grains of __________________ .
   2.  The word 'Igneous' has been taken from the Latin word Ignis which means ' _____________' .
   3.  Metamorphic rocks are mainly divided into two types on the basis of their ____________ .
   4.  The Latin word 'sedimentus' which means '_______________' .
   5.  ________________ is also known as onion peeling.
3. 3.

   Write (T) for true and (F) for false.

   1.  Carbon dioxide from the atmosphere dissolves in rainwater and forms carbonic acid.
   2.  Weathering follows the process of erosion.
   3.  Degradation is the process of lowering down of the Earth's elevated landforms.
   4.  Coal is an example of organic sedimentary rocks.
   5.  Most igneous rocks are composed of basalt or marble.
4. 4.

   Differentiate between Exogenic and Endogenic forces.

5. 5.

   Define gradation. What are the two processes involved in gradation?

6. 6.

   What is weathering? What are the factors responsible for weathering?