OBJECTIVE FORESTRY

FORESTRY

SOIL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Very fine mineral particles of soil
A
Sand
B
Silt
C
Clay
D
Horizon
Explanation: 

Detailed explanation-1: -Clay particles are the finest of all the soil particles, measuring fewer than 0.002 mm in size. It consists of microscopic and sub-microscopic particles derived from the chemical decomposition of rocks. Clay is a fine grained cohesive soil.

Detailed explanation-2: -Soil particles vary greatly in size, and soil scientists classify soil particles into sand, silt, and clay. Starting with the finest, clay particles are smaller than 0.002 mm in diameter. Some clay particles are so small that ordinary microscopes do not show them. Silt particles are from 0.002 to 0.05 mm in diameter.

Detailed explanation-3: -Soil mineral particles are sorted into three groups based on their size – sand, silt and clay. Sand particles are the biggest and clay particles are the smallest.

Detailed explanation-4: -Clayey soil-particle size is very minute; extremely fine particles (0.

Detailed explanation-5: -It can be molded easily when wet, and is hard to break up when dry. Clay is a very fine grained soil, and is very cohesive. Sand and gravel are course grained soils, having little cohesiveness and often called granular.

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