Below each type of soil in the first Column write the letters from the other two columns to match. 1. Alluvial A Not very fertile a. Iron oxide gives the colour B Quite fertile b. Western and Eastern Ghats 2. Red soil C Very fertile c. Deposited by rivers D Low in humus content d. Himalayan region 3. Black soil E Rich in humus content e. Northern plains, coastal plains F Mineral-rich 4. Lateritic soil G Clayey f. Rajasthan, Gujrat, Ladakh H Sandy g. From volcanic rocks 5. Desert soil I Acidic J Good for tea 6. Mountain soil K Good for cotton, sugar cane

1. Alluvial C Very fertile C. Deposited by rivers E Rich in humus content e. Northern plains, coastal plains It is extremely fertile because it is formed by the sediments transported by rivers and is a mixture of sand, clay and silt. It has good water retention and water-absorbing capacity. 2. Red soil A Not very fertile a. Iron oxide gives the colour D Low in humus content d. Himalayan region The lowermost area of red soil is dark and very fertile, while the upper layer is sandy and porous. 3. Black soil F Mineral-rich g. From volcanic rocks G Clayey K Good for cotton, sugar cane Black soils are mineral soils which have a black surface horizon, enriched with organic carbon. 4. Lateritic soil J. Good for tea b. Western and Eastern Ghats Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical1 areas. 5. Desert soil F Mineral-rich f. Rajasthan, Gujarat, Ladakh H Sandy Note: Sandy means it is light, warm, dry and tends to be acidic and low in nutrients. 6. Mountain soil B Quite fertile d. Himalayan region E Rich in humus content I Acidic

E M B I B E

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q D

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7th CBSE

IMPORTANT

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The breaking down of rocks into small particles is called of rocks.

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Important Questions on Soil

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7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q A

What role does oxygen present in the air play in the formation of soil?

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7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q A

How do changes in temperature help in weathering rocks?

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7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q A

Mention the various components of soil.

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7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q A

Which type of soil is considered the best for the growth of plants?

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7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q D

Decayed organic matter present in soil is called _____.(humus/ non-biodegradable / minerals)

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7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q D

Lateritic soil is found in the _____ states. (northeastern / southeastern)

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7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q E

The hard layer of rocks below the C horizon is called:

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7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 14 - Soil>Exercises>Q F

Below each type of soil in the first Column write the letters from the other two columns to match.

1.	Alluvial	A	Not very fertile	a.	Iron oxide gives the colour
		B	Quite fertile	b.	Western and Eastern Ghats
2.	Red soil	C	Very fertile	c.	Deposited by rivers
		D	Low in humus content	d.	Himalayan region
3.	Black soil	E	Rich in humus content	e.	Northern plains, coastal plains
		F	Mineral-rich

4.	Lateritic soil	G	Clayey	f.	Rajasthan, Gujrat, Ladakh
		H	Sandy	g.	From volcanic rocks
5.	Desert soil	I	Acidic
		J	Good for tea
6.	Mountain soil	K	Good for cotton, sugar cane

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