A. the focus within the body of the earth
B. the epicentre on the surface of the earth
C. the focus on the surface of the earth
D. the epicentre within the body of the earth
✅ The correct answer is option A.
694. The temperature at the core of the earth is about
A. 20000º C
B. 2000º C
C. 200000º C
D. 26000º C
✅ The correct answer is option B.
693. There are two types of crusts – the continental and the oceanic. The continental crust is
A. thicker below the plains than below mountains
B. thicker below the mountains than below the plains
C. almost same all over
D. thicker under the oceans than under the seas
✅ The correct answer is option B.
692. Magma that reaches earth’s surface and then solidifies is called
A. granite
B. lava
C. quartz
D. silicates
✅ The correct answer is option B.
691. The number of economic minerals associated with sedimentary rocks is
A. more than that associated with igneous rocks
B. less than that associated with igneous rocks
C. same as that in igneous rocks
D. unknown
✅ The correct answer is option B.
689. The capacity of rock to allow water to pass through it is called
A. hardness
B. jointing
C. porosity
D. permeability
✅ The correct answer is option D.
687. Carbonaceous rocks which produce coal and of belong to the category of rocks called
A. metamorphic
B. igneous
C. sedimentary
D. inorganic
✅ The correct answer is option C.
685. The cradles of civilization have been
A. valleys
B. plains
C. plateaux
D. hills
✅ The correct answer is option B.
683. A narrow inlet of sea between cliffs or steep slopes, especially associated with Scandinavia is
A. Bay
B. Gulf Stream
C. Fjord
D. None of these
✅ The correct answer is option C.
666. Malaspine Glacier is in
A. Karakoram Range
B. Alps
C. Alaska
D. Hindukush
✅ The correct answer is option C.