Explanation:

 1.  First statement is correct as in east Gagnetic plains we found Khadar soils which are much newer and productive than Bhangar found in the west gagnetic plains.

  Khadir or Khadar plains are those that are low-lying next to a river. Khadar areas are prone to flooding and sometimes include portions of former river-beds that became available for agriculture when a river changed course. It is moisture retentive and sticky when wet  Khadir soil consists of new alluvial soil deposits and is often very fertile. Bangar plains are more upland, and consist of older alluvial soil.

  Bangar/Bhangar  is not to be confused with sandy arid Bagar region which is also mainly not prone to the flood, but regions outside of Bagar region may have both Khadar and Bangar areas within the same village. Bangar area are less prone to flooding but are usually more sandy and less fertile as well.

2.  Second statement is incorrect.