Question : The crust is the Earth's outermost layer that is less than _______ per cent of Earth by mass, with oceanic crust and continental crust often consisting of more felsic rocks.

Option 1: 5

Option 2: 1

Option 3: 2

Option 4: 10

Question : Which of the following is the most abundant metal on Earth's crust?

Option 1: Magnesium

Option 2: Iron

Option 3: Copper

Option 4: Aluminium

Question : The theory of plate tectonics proposes that the earth’s lithosphere is divided into ______ major and some minor plates.

Option 1: 7

Option 2: 6

Option 3: 12

Option 4: 16

Question : The most abundant metal in the Earth's crust is

Option 1: zinc

Option 2: copper

Option 3: Aluminium

Option 4: Iron

Question : Any natural mass of mineral matter that makes up the earth's crust is:

Option 1: garbage

Option 2: rock

Option 3: stone

Option 4: fossil