GK Questions: World Geography – Set 19

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1. Who was the first person to calculate the circumference of the Earth ?
   1.Aristotile
   2.Ptolemy
   3.Ainville
   4.Eratosthenes
   5.None of these
   
   Answer & Explanation

   Answer – 4.Eratosthenes
   Explanation :
   Eratosthenes is best known for being the first person to calculate the circumference of the Earth, which he did by applying a measuring system using stadia.
   
   
   
2. ………………. is the outermost and the thinnest layer of the Earth
   1.Core
   2.Mantle
   3.Crust
   4.Corona
   5.None of these
   
   Answer & Explanation

   Answer – 3.Crust
   Explanation :
   The Earth can be divided into four main layers: the solid crust on the outside, the mantle, the outer core and the inner core.
   The crust, the outermost layer or surface layer, is the thinnest layer of Earth
   
   
   
3. …………….. are the changed form of Igneous and Sedimentary rocks
   1.Intrusive rocks
   2.Extrusive rocks
   3.Metamorphic rocks
   4.All of these
   5.None of these
   
   Answer & Explanation

   Answer – 3.Metamorphic rocks
   Explanation :
   Igneous rock can change into sedimentary rock or into metamorphic rock by metamorphic process
   
   
   
4. The Ocean current flowing from lower altitude to higher altitude are called as
   1.Cold current
   2.Ocean current
   3.Labrador current
   4.Warm current
   5.None of these
   
   Answer & Explanation

   Answer – 4.Warm current
   Explanation :
   The Ocean current flowing from lower altitude to higher altitude are called as Warm current
   
   
   
5. The Ocean current flowing from higher altitude to lower altitude are called as
   1.Warm current
   2.Alaska current
   3.Cold current
   4.Oyashio current
   5.None of these
   
   Answer & Explanation

   Answer – 3.Cold current
   Explanation :
   The Ocean current flowing from higher altitude to lower altitude are called as Cold current
   
   
   
6. Which rocks are formed due to the cooling solidification and crystallisation of hot and molten magma ?
   1.Igneous rocks
   2.Metamorphic rocks
   3.Sedimentary rocks
   4.Intrusive rocks
   5.None of these
   
   Answer & Explanation

   Answer – 1.Igneous rocks
   Explanation :
   Igneous Rocks are formed by crystallization from a liquid, or magma. They include two types. Volcanic or extrusive igneous rocks and intrusive rocks
   
   
   
7. The Rocks are made up of ……………..
   1.Soil
   2.Protiens
   3.Vitamins
   4.Minerals
   5.None of these
   
   Answer & Explanation

   Answer – 4.Minerals
   Explanation :
   The crust is made up of rocks and minerals. Much of the crust is covered by water, sand, soil and ice.
   
   
   
8. The intermediate layer of the Earth is called as …………..
   1.Core
   2.Mantle
   3.Crust
   4.Plate
   5.None of these
   
   Answer & Explanation

   Answer – 2.Mantle
   Explanation :
   The mantle is a layer between the crust and the outer core. Earth’s mantle is a silicate rocky shell with an average thickness of 2,886 kilometres (1,793 mi).
   
   
   
9. ……………. is the study of soils in their natural environment
   1.Cosmology
   2.Bio-Geography
   3.Pedology
   4.Glaciology
   5.None of these
   
   Answer & Explanation

   Answer – 3.Pedology
   Explanation :
   Pedology is the study of soils in their natural environment. It is one of two main branches of soil science, the other being edaphology
   
   
   
10. Who among the following created the first map of the world ?
    1.Anaximander
    2.Friedrich Ratzel
    3.Ptolemy
    4.Ainville
    5.None of these
    
    Answer & Explanation

    Answer – 1.Anaximander
    Explanation :
    Anaximander invented the idea of models, drew the first map of the world in Greece, and is said to have been the first to write a book of prose.