Related Questions

The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth's early life and solidified into hard rock's called
A granite
B basalt
C igneous rocks
D sedimentary rocks
The most abundant element in the earth 's crust is oxygen . The second most abundant element is the earth's crust is -
A Hydrogen
B Silicon
C Nitrogen
D Brass
The mean thickness of oceanic crust and continental crust is around:
A 5 kilometer and 15 kilometer respectively.
B 10 kilometer and 30 kilometer respectively.
C 5 kilometer and 30 kilometer respectively.
D 18 kilometer and 40 kilometer respectively.
When an object enters earths atmosphere, it travels ----
A very repidly
B in a rapid manner
C fastly
D rapidly
The majority of Earth's crust is composed of which rock?
A Igneous
B Metamorphic
C Sedimetary
D Carbonate
Igneous rocks are formed from molten rock material. Which one of the following is not an igneous rock?
A Granite
B Quartz
C Feldspar
D Slate
A valley with steep, parallel walls along the faultlines, formed by the subsidence of a part of earth's crust is known as ________
A Hanging Valley
B Gorge
C Canyon
D Rift Valley
A block of the earth's crust that has remained in position while the ground around it has subsides is known as ________
A Horst
B Plain
C Plateau
D Young folded mountain
Find out which quotation parts of the following sentences has an error. Trenches in the ocean floor are of 'great interest' because they are lines 'where' the earth crust often is 'so weak' to resist the impact of 'frequent earthquakes'.
A great interest
B where
C so weak
D frequent earthquakes
Which of the following is the most abundant metal on Earth's crust?
A Magnesium
B Iron
C Copper
D Aluminium

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