Which of the following is the most important component of sand and granite ?
Quartz
Gypsum
Fluorite
Iron
Which of the following is a mixture of non-metallic minerals ?
Cement
Gold
Mica
Granite
A continuous process through which old rocks are transformed into new ones is called?
Rock chain
Rock cycle
Endogenetic process
Tectonic process
The mineral that constitues 4% of the earth's crust is?
Olivine
Pyroxene
Feldspar
The elements in the earth's crust,which, are rarely found exclusively but are usually combined with other elements to make various substances. These substances are called as ?
Rocks
Minerals
Metals
Non-metals
The earth's crust is mainly composed of ?
Soil
Water
Air
Which one of the following is a Hard rock ?
Basalt
Chalk
Limestone
Half of the earth's crust is composed of __________ .
Which on of the following is a Sedimentary rock ?
Marble
Sandstone
The element present in largest amount in rocks and minerals is
Chlorine
Zinc
Silicon
Copper