TEST SERIES- 14 (I)

Hard pan and clay pan in soil are found in

• A-horizon

• B-horizon

• C-horizon

• A-C horizon

Which of the following is correct about hygroscopic soil water?

• It flows smoothly

• It moves with speed

• It penetrates into soil

• It does not penetrate into soil but clings tightly to individual particles

The proporties of a soil is indicated by its

• Colour

• Texture

• Profile

• Structure

Laterite is produced by

• Hydration and carbonation

• Hydrolysis and oxidation

• Leaching and oxidation

• Hydration and calcification

Chestnut soils are

• Alkaline

• Saline

• Water-holding

• Laterite

A horizon of soil is

• The middle layer

• Uppermost layer

• The lowest layer

• Regolith

The most suitable measure for soil conservation is

• Afforestation

• Irrigation

• Crop rotation

• Contour farming

Soils, which have undergone gleying and are associated with marshes, swamps or poorly drained upland are called

• Calcimorphous soils

• Hydromorphic soils

• Halomorphic soils

• Sierozems

Laterite soils are formed due to

• Removal of silicates, lime and organic matter

• Decayed organic matter

• Disintegration of volcanic matter

• Deposition of limestone

Which one of the following pairs are correctly matched?

• Latosols — Scrubs

• Chernozem — Savannas

• Serozen — Selvas

• Podzol — Conifers