pedology or soil & agriculture section 6 MCQ Questions & Answers Detailed Explanation

Answer: (a)

Answer: (b)

Answer: (b)

Loam encompasses a variety of soil types, some granulated and nicely draining, while others may be thicker and have the consistency of mud. Most loam soils are a brown or black colour, making them ideal for gardens.

It is often the most preferred type for plant growth and does well with just about any species. Large plants and trees, including maples and poplars, are both commonly found growing in loam soil. Loam is a combination of small rock particles, organic matter and nutrients, often in ideal combinations for healthy plant growth.

The granular soil retains water very easily, yet the drainage is well. Loamy soil is composed of 40 % sand, 40% silt and 20% clay.

Answer: (a)

Answer: (c)

Answer: (d)

Laterites are soil types rich in iron and aluminium, formed in hot and wet tropical areas. Nearly all laterites are rusty-red because of iron oxides.

They develop by intensive and long-lasting weathering of the underlying parent rock. Tropical weathering (lateralization) is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils.