8 std model unit test – 2022
unit test – 2022
class : VIII marks : 25 subject : Geography ( Rocks and Sail ) time : 45 mns
I Choose the correct answer : [ 4 x 1 = 4 ]
1. World Soil day is observed on
a) 15th august b) 12th January
c) 15th October d) 5th December
2. The top layer of soil is called as
a) Organic layer or humas b) Top soil c) Sub soil d) Bedrock
3. Ideal sail for growing cotton is
a) Red soil b) Black soil
c) Aluvial soil d) Mountain soil
4. The major components of soil is a) Rocks b) Minerals
c) water d) All the above
II Fill in the blanks : [1 x 3 = 3 ]
5. Scientific study of rocks is called …………….
6. The skin of earth is …………
7. …………… is the kind of metamorphic rock.
III Match the following : [ 4 x 1 = 4 ]
8. Granite – Bed rock
9. Soil layer – Pluthonic rock
10. Barren island – Strip farming
11. Soil conservation – Active volcona
IV choose the incorrect statement from the followings : [ 1 x 1 = 1 ]
12.
a) Igneous rocks are called the primary rocks.
b) Soil is the product of weathering of rocks.
c) Sedimentary rocks are the hardest ones.
d) Deccan plateau is the region of Igneous rocks.
V Give reasons : [ 1 x 1 = 1 ]
13. Igneous rocks are found in the region of Valcaneos.
V Distinguish between : [ 2 x 2 = 4]
14. Metamorphic rock and sedimentary rock..
15. Soil conversation and soil erasian.
V Answer briefly : [ 1 x 5 = 5 ]
16. How are igneous rocks formed?
17. Describe about the composition of soil?
18. Define rock.
19. What is soil conversation?
VIII Answer in a paragraph. [ 1 x 5 = 5 ]
20. Classify and explainthe rocks.
21. classify and explain the soil.
E. SIVA SHANKARI
ReplyDelete