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MCQ Questions for Class 7 Social Science with Answers Geography: The Earth: Our Habitat
Q1. The depth of deepest mine in South Africa is about:
(i) 3km
(ii) 4km
(iii) 5 km
(iv) 6 km
(ii) 4km
Q2. Red fort is made up of
(i) Red sandstone
(ii) Black sandstone
(iii) Red marble
(iv) Black marble
(i) Red sandstone
Q3. Which type of rocks is called primary rocks
(i) Fossils
(ii) Igneous
(iii) Metamorphic
(iv) Sedimentary
(ii) Igneous
Q4. The upper most layer of the earth’s surface is called
(i) the crust
(ii) the brust
(iii) the roads
(iv) the forest
(i) the crust
Q5. The Taj Mahal is made of
(i) White marble
(ii) Black marble
(iii) Red marble
(iv) Yellow marble
(i) White marble
Q6. What is meaning of igneous?
(i) Air
(ii) Water
(iii) Lime
(iv) Fire
(iv) Fire
Q7. Lithosphere is
(i) Mantle
(ii) Magma
(iii) Core
(iv) Crust
(iv) Crust
Q8. Sandstone is made from
(i) Grains of soil
(ii) Grains of plants
(iii) Grains of water
(iv) Grains of sand
(iv) Grains of sand
Q9. Igneous and sedimentary rocks can change into:
(i) Intrusive igneous rocks
(ii) Extrusive igneous rocks
(iii) Metamorphic rocks
(iv) Igneous rocks
(iii) Metamorphic rocks
Q10. The remains of the dead plants and animals trapped in the layers of rocks are called
(i) Rocks
(ii) Conventional
(iii) Fossils
(iv) Minerals
(iii) Fossils
Q11. Lithosphere is
(i) Mantle
(ii) Magma
(iii) Core
(iv) Crust
(iv) Crust
Q12. The process of transformation of the rock from one form to another is known as
(i) road cycle
(ii) food cycle
(iii) rock cycle
(iv) all of these
(iii) rock cycle
Q13. Fossils are the remains of dead _
(i) Plants
(ii) Animals
(iii) Both (i) and (ii)
(iv) None of the above
(iii) Both (i) and (ii)
Q14. In search for oil engineers have dug a hole about:
(i) 3km
(ii) 4km
(iii) 5 km
(iv) 6 km
(iv) 6 km
Q15. Sandstone is made from
(i) Grains of soil
(ii) Grains of plants
(iii) Grains of water
(iv) Grains of sand
(iv) Grains of sand
Q16. What happens when igneous and sedimentary rocks go under heat and pressure
(i) They change into graphite
(ii) They change into fossils
(iii) They change into metamorphic rocks
(iv) They change into minerals
(iii) They change into metamorphic rocks
Q17. What is the latin term of Igneous?
(i) Ignis
(ii) Sedimentum
(iii) Metamorphose
(iv) None of these
(i) Ignis
Q18. The depth of the deepest mine in South Africa is
(i) one km
(ii) two km
(iii) three km
(iv) four km
(iv) four km
Q19. Igneous rocks are called primary rocks because:
(а) All the other rocks are formed from the igneous rocks.
(ii) These are important for human beings.
(iii) These rocks produce all the ailments.
(iv) None of the above.
(а) All the other rocks are formed from the igneous rocks.
Q20. When magma from deep below forces its way up to earths surface, it is called
(i) Sand
(ii) Marble
(iii) Sediments
(iv) Volcano
(iv) Volcano
Q21. Rocks roll down, crack, and hit each other and are broken down into small fragments. These smaller particles are called
(i) Sediments
(ii) Sand
(iii) Piece
(iv) Units
(i) Sediments
Q22. Depth of mantle layer of the earth is:
(i) 2900 km
(ii) 3000 km
(iii) 3100km
(iv) 3200 km
(i) 2900 km
Q23. What is the Radius of the earth?
(i) 2600 km
(ii) 3671km
(iii) 7163 km
(iv) 6371 km
(iv) 6371 km
Q24. Which type of rocks is called primary rocks
(i) Fossils
(ii) Igneous
(iii) Metamorphic
(iv) Sedimentary
(ii) Igneous
Q25. Thinnest layer of the earth is
(i) Crust
(ii) Nife
(iii) Core
(iv) Mantle
(i) Crust
Q26. What is meaning of igneous?
(i) Air
(ii) Water
(iii) Lime
(iv) Fire
(iv) Fire
Q27. Which rocks are known as primary rocks?
(i) Igneous rocks
(ii) Sedimentary rocks
(iii) Metamorphic rocks
(iv) None of these
(i) Igneous rocks
Q28. Silica and magnesium are the constituents of
(i) Rock
(ii) Inner Core
(iii) Outer Core
(iv) Mantle
(iv) Mantle
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