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Class 12
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Study of Physical Properties of Soil
Study of Physical Properties of Soil
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1)
The soil pH is an indication of _______
Acidity or alkalinity of soils.
Texture of the soil.
Nutrient content of the soil.
Clarity of soil.
2)
The majority of plants prefer a very slightly acidic pH of around ________.
10 to 14
6 to 7
1 to 2
3 to 4
3)
A sample soil consists of 12% clay, 55% sand and 31% silt. Find the textural class of the soil using textural triangle.
Sandy clay loam.
Sandy loam.
Silt.
Silty clay.
4)
Which type soil has particle size 0.05–2 mm?
Sand.
Gravel.
Silt.
Clay.
5)
Which particle is the smallest in size?
Silt.
Clay.
Gravel.
Sand.
6)
What is the use of the soil texture triangle?
Used to find out the pH of soil.
It is a tool used to visualise and understand the meaning of soil texture names.
To calculate the percentage of sand, silt, and clay in soil sample.
To determine the water holding capacity of the soil.
7)
A productive soil contains approximately 46% mineral matter, 4% organic matter, 25 % water and 25% _______.
Acidic matter.
Air.
Inorganic matter.
Nitrogen.
8)
"Soil texture" refers to _______________.
The chemical composition of a soil.
The amount of inorganic matter in a soil.
The amount of organic matter in a soil.
The size of the individual soil particles.
9)
An ideal soil should contain _______.
Mostly sand.
Mostly silt.
Equivalent portions of sand, silt, clay, and organic matter.
50% clay and 50% sand.
10)
What is the soil classification system based on?
Its colour.
Its physical properties.
Its chemical properties.
Its smell.
Cite this Simulator:
amrita.olabs.edu.in,. (2015). Study of Physical Properties of Soil. Retrieved 23 May 2022, from amrita.olabs.edu.in/?sub=79&brch=18&sim=235&cnt=673
