Here we are with the 2nd chapter, “Inside Our Earth.” In this chapter, you have studied our planet, from outer crust to inner core. We also learned about various types of rocks — igneous, sedimentary, and metamorphic and their formation processes. We have also studied how rocks change from one type to another and how this happens under different conditions. Once thoroughly acquainted with all these concepts, you can practice the MCQ questions we present below. Here, you will find 30 MCQ questions from the chapter with an additional 10 fill-in-the-blanks type of questions. These questions will help you review key concepts and prepare for your exams.
MCQ Questions and Answers for Class 7 Geography Chapter 2 Inside Our Earth
Question 1. The rock which is made up of molten magma is:
a) Igneous
b) Sedimentary
c) Metamorphic
Answer:
a) Igneous
Question 2. The innermost layer of the earth is:
a) Crust
b) Core
c) Mantle
Answer:
b) Core
Question 3. Gold, petroleum, and coal are examples of:
a) Rocks
b) Minerals
c) Fossils
Answer:
b) Minerals
Question 4. Rocks which contain fossils are:
a) Sedimentary rocks
b) Metamorphic rocks
c) Igneous rocks
Answer:
a) Sedimentary rocks
Question 5. The thinnest layer of the earth is:
a) Crust
b) Mantle
c) Core
Answer:
a) Crust
Question 6. What are the three layers of the earth?
a) Crust, Mantle, Core
b) Crust, Core, Lithosphere
c) Mantle, Core, Lithosphere
Answer:
a) Crust, Mantle, Core
Question 7. How are extrusive and intrusive rocks formed?
a) Extrusive rocks are formed from lava on the surface, and intrusive rocks are formed from magma beneath the surface.
b) Both are formed from lava on the surface.
c) Both are formed from magma beneath the surface.
Answer:
a) Extrusive rocks are formed from lava on the surface, and intrusive rocks are formed from magma beneath the surface.
Question 8. What do you mean by a rock cycle?
a) The transformation of one type of rock to another type under certain conditions.
b) The formation of rocks from molten magma.
c) The erosion of rocks over time.
Answer:
a) The transformation of one type of rock to another type under certain conditions.
Question 9. What are metamorphic rocks?
a) Rocks that change form under heat and pressure.
b) Rocks that form from sediments.
c) Rocks that form from molten magma.
Answer:
a) Rocks that change form under heat and pressure.
Question 10. Limestone is changed into marble by:
a) Weathering
b) Heat and pressure
c) Erosion
Answer:
b) Heat and pressure
Question 11. What is a rock?
a) A naturally occurring substance
b) A mineral
c) A natural mass of mineral matter that makes up the earth’s crust
Answer:
c) A natural mass of mineral matter that makes up the earth’s crust
Question 12. Name three types of rocks.
a) Igneous, Metamorphic, Extrusive
b) Igneous, Sedimentary, Metamorphic
c) Intrusive, Extrusive, Metamorphic
Answer:
b) Igneous, Sedimentary, Metamorphic
Question 13. What do you mean by a rock cycle?
a) The formation of rocks from lava
b) The transformation of one type of rock to another under certain conditions
c) The weathering of rocks over time
Answer:
b) The transformation of one type of rock to another under certain conditions
Question 14. What are the uses of rocks?
a) Making roads, houses, and buildings
b) Playing games
c) Both a and b
Answer:
c) Both a and b
Question 15. How are extrusive rocks formed?
a) From magma cooling beneath the earth’s surface
b) From lava cooling on the earth’s surface
c) From the weathering of other rocks
Answer:
b) From lava cooling on the earth’s surface
Question 16. What are intrusive igneous rocks?
a) Rocks formed from lava cooling on the earth’s surface
b) Rocks formed from magma cooling deep inside the earth’s crust
c) Rocks formed from sediments
Answer:
b) Rocks formed from magma cooling deep inside the earth’s crust
Question 17. Which of the following rocks is an example of an extrusive igneous rock?
a) Granite
b) Basalt
c) Sandstone
Answer:
b) Basalt
Question 18. Which type of rock is formed from the compaction and cementation of sediments?
a) Igneous
b) Sedimentary
c) Metamorphic
Answer:
b) Sedimentary
Question 19. What happens to igneous and sedimentary rocks under great heat and pressure?
a) They form new igneous rocks
b) They melt into magma
c) They change into metamorphic rocks
Answer:
c) They change into metamorphic rocks
Question 20. What are fossils?
a) Rocks formed from sediments
b) Remains of dead plants and animals trapped in rock layers
c) Rocks that change form under heat and pressure
Answer:
b) Remains of dead plants and animals trapped in rock layers
Question 21. What are the main mineral constituents of the continental mass?
a) Silica and Magnesium
b) Silica and Iron
c) Silica and Alumina
Answer:
c) Silica and Alumina
Question 22. Which layer of the earth is the thinnest?
a) Crust
b) Mantle
c) Core
Answer:
a) Crust
Question 23. The oceanic crust mainly consists of which minerals?
a) Silica and Alumina
b) Silica and Magnesium
c) Silica and Iron
Answer:
b) Silica and Magnesium
Question 24. What is the process of transformation of rocks called?
a) Rock formation
b) Rock cycle
c) Rock erosion
Answer:
b) Rock cycle
Question 25. What are intrusive igneous rocks?
a) Rocks formed from lava cooling on the earth’s surface
b) Rocks formed from magma cooling deep inside the earth’s crust
c) Rocks formed from sediments
Answer:
b) Rocks formed from magma cooling deep inside the earth’s crust
Question 26. Which type of rock is granite an example of?
a) Extrusive igneous rock
b) Intrusive igneous rock
c) Sedimentary rock
Answer:
b) Intrusive igneous rock
Question 27. What is the radius of the earth?
a) 6371 km
b) 2900 km
c) 3500 km
Answer:
a) 6371 km
Question 28. What is the outermost layer of the earth called?
a) Mantle
b) Core
c) Crust
Answer:
c) Crust
Question 29. Which rock is commonly used for making roads and buildings?
a) Sandstone
b) Granite
c) Basalt
Answer:
c) Basalt
Question 30. What type of rock is sandstone?
a) Igneous rock
b) Sedimentary rock
c) Metamorphic rock
Answer:
b) Sedimentary rock
Fill-in-the-blanks and True or false MCQ Questions for Class 7 Geography – Inside Our Earth
Fill-in-the-blank questions
Question 1. The uppermost layer of the earth is called the ________.
Answer:
Crust
Question 2. The main mineral constituents of the oceanic crust are silica and ________.
Answer:
Magnesium
Question 3. The innermost layer of the earth is called the ________.
Answer:
Core
Question 4. The process of transformation of one type of rock to another is known as the ________.
Answer:
Rock cycle
Question 5. Rocks formed from the cooling of molten magma are called ________ rocks.
Answer:
Igneous
Question 6. The radius of the earth is ________ km.
Answer:
6371
Question 7. The Deccan Plateau is made up of ________ rocks.
Answer:
Basalt
Question 8. Rocks that change form under heat and pressure are called ________ rocks.
Answer:
Metamorphic
Question 9. The thinnest layer of the earth is the ________.
Answer:
Crust
Question 10. ________ is an example of an intrusive igneous rock.
Answer:
Granite
