Soil Worksheet-4

Soil Worksheet-4

Multiple -Choice Questions:

1. ________ is very fine sand.

(a) Dust                       (b) Cloud

2. _________ are formed around dust particles.

(a) Stones                    (b) Clouds

3. If there is/are no ________, then there would be no rain.

(a) Dust                       (b) germs

4. The _______ layer of the soil is made up of fine sand and humus.

(a) uppermost            (b) Lowermost

5. The layer of the soil made up of fine sand and humus is called the _______.

(a) topsoil                   (b) bottomsoil

6. The uppermost layer of the soil made up of _____ and _______.

(a) Clay, fine sand

(b) Fine sand, humus

(c) Humus, pebbles

7. Strong wind and water carry the _______ topsoil with them.

(a) loose                       (b) tight

8. Topsoil is very ________ because it is rich in humus.

(a) fertile                     (b) infertile

9. Topsoil is very fertile because it is rich in ______.

(a) humus                   (b) clay                        (c) sand

10. What is the removal of the fertile topsoil by the action of wind and water called?

(a) Humus                  (b) Soil erosion

Answer Key:

(1)-A; (2)-B; (3)-A; (4)-A; (5)-A; (6)-B; (7)-A; (8)-A; (9)-A; (10)-B