Page 92 - Science Class 07

4. Which type of soil has the least water reten on capacity?
(a) Desert soil (b) Loamy soil

(c) Laterite soil (d) Clayey soil
5. ______________ soil is good for growing tea and coffee.
(a) Red soil (b) Black soil

(c) Alluvial soil (d) Laterite soil
B. Fill in the blanks.
1. Soil contains organic materials in the form of ______________________ .
2. The soil produced in a warm and moist climate is more ____________ and develop than
that produced in cool climate.
3. C-horizon consists of small ____________ broken down from the parents rocks.

4. ____________ soil is best suited for the plant growth because it contains sand, clay and
humus.

5. The ____________ soil is by far the largest and most important soil group of India
contribu ng the largest share to its agricultural wealth.
C. Match the following columns.
Column I Column II
1. Alluvial soil a. Iron oxide

2. Black soil b. Good mineral content
3. Red soil c. Large amount of humus
4. Laterite soil d. Loamy texture
5. Mountain soil e. Deccan trap

D. Name the soil found in the following states. Also, write about the soil.
1. Karnataka : ________________________________________________________
_________________________________________________________________________

2. Maharashtra : ________________________________________________________
_________________________________________________________________________
3. Chha sgarh : ________________________________________________________
_________________________________________________________________________

4. Gujarat : ________________________________________________________
_________________________________________________________________________
E. Very short answer ques ons.

1. What is soil made up of?
2. What is the soil of C-horizon called?
3. What is the size of par cles of sand?
4. What is the alluvial soil made up of?

5. Name any three states where black soil is found.
6. What is afforesta on?

92 Science-7