Tag: climate, soil, natural vegetation and animals of karnataka

Questions Related to climate, soil, natural vegetation and animals of karnataka

Black soil contains aluminium, _____ and oxides of iron. 

  1. Lime

  2. Salt

  3. Magnesium

  4. None of these


Correct Option: C

_____ soil is essential for agriculture.

  1. Barren

  2. Fertile

  3. Sandy

  4. Rugged


Correct Option: B

Red soil contains _____ and hence it is red in colour.

  1. Iron oxides

  2. Carbon dioxides

  3. Nitrogen

  4. None of these


Correct Option: A
Explanation:
  • Red soil indicates the presence of oxidized ferric iron oxides

Red soil found more in _____ Karnataka.

  1. North

  2. South

  3. East

  4. West


Correct Option: B

Red soil is _____.

  1. Very fertile

  2. Not very fertile

  3. Acidic

  4. Basic


Correct Option: B

_____ soil is formed by the weathering of basalt rocks.

  1. Alluvial

  2. Red

  3. Black

  4. Laterite


Correct Option: C
Explanation:
  • The black soil is formed by the weathering of lava (igneous rocks) and cooling of lava after a volcanic eruption. 
  • The soil in the Deccan Plateau consist of black basalt soil, which is rich in humus, iron and also contain high quality of magnesia, lime and alumina.

The eastern maidans are the areas of _____ rainfall.

  1. Very high

  2. High

  3. Low

  4. Very low


Correct Option: C

Red soil's capacity for moisture retention is _____.

  1. Very high

  2. High

  3. Very less

  4. Less


Correct Option: D

Black soil is also called _____ .

  1. Black cotton soil

  2. Laterite soil

  3. Alluvial soil

  4. None of these


Correct Option: A

_____ soil is obtained from the weathering of granite and gneiss.

  1. Black

  2. Alluvial

  3. Laterite

  4. Red


Correct Option: D