In which area is new alluvial soil most likely to be deposited after floods every year?

Correct answer: Khadar

Direct answer: D is correct. Khadar is the newer alluvium found in active floodplains and in low areas close to present river channels. During floods, rivers spread fine silt, sand and clay over these areas. Because fresh sediment can be added repeatedly, Khadar is renewed frequently and is generally fertile. Option D correctly identifies the area most likely to receive new alluvium after floods every year. Option A, Bhangar, is older alluvium on relatively higher terraces and is not renewed annually in the same way. Option B, Bhabar, is a porous, pebbly belt near the Shiwaliks where streams often disappear underground, so it is not the normal answer for annual floodplain deposition. Option C, Terai, is the marshy belt south of Bhabar where streams re-emerge; it may receive water and sediment, but the standard term for newer floodplain alluvium is Khadar. Exam cue: Khadar means new, low, flood-deposited alluvium.