Question

Q.4 Match the following:
Column A
Column B
Answer
1. Horizon
1.
a) This horizon is generally dark
in colour as it is rich in humus
and minerals.
b) The layer made up of small
lumps of rocks
2.
2. A-Horizon
3.
3. B-Horizon
c) The last layer of soil profile
4.
4. C-Horizon
d) Different layer of soil in terms
of texture, colour, depth and
chemical composition
e) This layer has a lesser amount
of humus but more of minerals
5.
5. Bedrock
6.​

Answer 1

Answer:

A home for living organisms (b) All kinds of soil

(ii) Upper layer of the soil (c) Dark in colour

(iii) Sandy soil (a) Large particles

(iv) Middle layer of the soil (e) Lesser amount of humus

(v) Clayey soil (d) Small particles and packed tight

Answer 2

$\huge\rm { ☆_!! Answers !_! ☆}$

Match the following-

• 1.) Horizon $\huge \longrightarrow$ d) Different layer of soil in terms of texture, colour, depth and chemical composition.

$\rm { ( 1 ) \longrightarrow ( d ) }$

• 2.) A-Horizon $\huge \longrightarrow$ (a) This horizon is generally dark in colour as it is rich in humus and minerals.

$\rm { ( 2 ) \longrightarrow ( a ) }$

• 3.) B-Horizon $\huge \longrightarrow$ e) This layer has a lesser amount of humus but more of minerals.

$\rm { ( 3 ) \longrightarrow ( e ) }$

• 4.) C-Horizon $\huge \longrightarrow$ b) The layer made up of small lumps of rocks.

$\rm { ( 4 ) \longrightarrow ( b ) }$

• 5. ) Bedrock $\huge \longrightarrow$ c)The last layer of soil profile.

$\rm { ( 5 ) \longrightarrow ( c ) }$

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$\huge\rm { ☆_!! Golden \: key \: points !_! ☆}$

• Soil is the top covering of the earth's surface.

• Soil is formed due to wear and tear of rocks by human or natural forces.

• The vertical sections of soil has horizontal layers called soil horizons.

• Different types of soil horizons are-:

● Horizon A ( Top soil )

● Horizon B ( Sub soil )

● Horizon C ( Rock fragments/Bedrock )

● Horizon D ( Parent rock )

• There are many types of soil -

↪ Alluvial soil

↪ Black soil

↪ Red soil

↪ Laterite soil

↪ Desert soil

↪ Mountain soil

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