Identify the most infertile amongst the following soils.

(1) Black cotton soil

(2) Alluvial soil

(3) Laterite soil

(4) Peaty soil

Which one of the following pairs is not correctly matched?

(1) Khadar – Zonal soil

(2) Podzol – Zonal soil

(3) Chestnut – Zonal soil

(4) Bhangar – Azonal soil

In a desert region, soil erosion can be checked by

(1) Contour ploughing

(2) Using farm manure

(3) Tree plantation/Afforestaion

(4) Crop rotation

‘Terra Rossa' is a Latin word that means

(1) hot area

(2) red terrain

(3) lateritic region

(4) region near the poles

The soils which are rich in Calcium are known as

(1) Pedoclas

(2) Pedalfers

(3) Podsols

(4) Laterites

Soil erosion can be prevented by

(1) Increasing bird population

(2) Afforestation

(3) Removal of vegetation

(4) Overgrazing

Who of the following has given the term rhizosphere :

1) Garret

(2) Alexopolus

(3) Hiltner

(4) None of the given options

The asha–grey soils of high–latitude coniferous forests a known as :

(1) Tundra soils

(2) Podsols

(3) Grey–Brown soils

(4) Red and Yellow soils

The remedies to soil erosion are :

\(\mathrm{I}\). Contour bunding

\(\mathrm{II}\). Regulation of land use

\(\mathrm{III}\). Cutting of trees

\(\mathrm{IV}\). Allowing grazing of animals

(1) \(\mathrm{I},\mathrm{III}\)

(2) \(\mathrm{I},\mathrm{II}\)

(3) \(\mathrm{III},\mathrm{IV}\)

(4) \(\mathrm{II},\mathrm{III}\)

In which region is Terrace farming done?

(1) Dry regions

(2) Slope of hills

(3) Mountain tops

(4) Rooftops

Alluvial soils are rich soil for crop cultivation but are poor in

(1) humus

(2) nitrogen and humus

(3) organic material

(4) inorganic material