Pavan picked up a lump of soil and observed that it has very fine soil particles and is tightly packed. Which type of soil should he label the sample as?

Clay soil

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Sandy Soil

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Loamy soil

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Humus

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Solution

The correct option is A Clay soil
$∙$ Clay soil is the type of soil that is composed of fine particles. Hence, it has very few air spaces. Unlike sandy soil, it will not flow out of the hand if we hold it in our fist.
$∙$ Sand particles are quite large. They cannot fit close together, so there are large spaces between them. These spaces are filled with air. So, it has highest air spaces bewteen its particles.
$∙$ Loamy soils have particle size in between those of sandy and clayey soils. So, it has air spaces between those of sandy and clayey soil.
$∙$ The rotting dead matter in the soil is called humus.

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Similar questions

Q. Fill in the blanks:
1. Wheat and barely grows best in ......................... soil.
2. No humus is present in ......................... horizon.
3. Paddy grows best in ......................... soil.
4. ......................... soil is poorly aerated with high water ......................... property.
5. ......................... soil has fines of all soil particles.

Arrange the following soil types according to their properties:

\begin{matrix} i . Sandy soil & a . Mixture of large and small soil particles along with silt i i . Clayey soil & b . Large soil particles, lots of air spaces i i i . Loamy soil & c . Small soil particles tightly packed together \end{matrix}

Appu’s father plans on opening an Anthurium flower farm. He read that Anthurium plants require soils with good water absorption capacity along with good aeration. He has three choices: Clayey soil, Sandy Loam soil and coco peat (an artificial soil made from coconut husks). He took 50 g of each soil and determined the volume of water it absorbed. He also determined the soil particle size using a microscope and tabulated the results.

$\begin{matrix} Soil Type & Volume of water absorbed by 50g of soil & Particle size Clayey & 35 ml & 0.002 mm Sandy Loam & 15 ml & 1 mm Coco Peat & 350 ml & 1 mm \end{matrix}$

Which soil should Appu’s father choose?

Appu’s father collected four different types of soil from different places. He took four different beakers with funnel and filter paper. Then he put 10g of each sample of soil on the filter paper placed on the top of each beaker. Then he poured 70 ml of water in each beaker passing the filter paper with soil. After some time he observed that the amount of water in beaker A is 25 ml, beaker B is 30 ml, beaker C is 65 ml and beaker D is 50 ml. Based on this observation of Appu's father, which soil you think he should pick for his farm?

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