Question

The difference between quartzite and gneiss is that:_________

a. gneiss can be scratched by a fingernail, but quartzite cannot.
b. gneiss effervesces with application of dilute HCl, whereas quartzite does not.
c. quartzite is foliated, whereas gneiss is unfoliated.
d. quartzite can be scratched by a fingernail, but gneiss cannot.
e. quartzite effervesces with application of dilute HCl, whereas gneiss does not.
f. gneiss is foliated, whereas quartzite is unfoliated.
g. the layers of gneiss are more flat than the layers of quartzite, which are noticeably wavy.
h. the layers of quartzite are more flat than the layers of gneiss, which are noticeably wavy.

Answer 1

C. Granite is formed due to the slow cooling of magma below Earth's surface and gneiss is formed due to metamorphosis.

Step-by-step explanation:

Answer 2

f. gneiss is foliated, whereas quartzite is unfoliated

Step-by-step explanation:

The rock quartzite is a non foliated type of metamorphic rock. This kinds of rock has its formation caused by quartz sandstone getting metamorphic.

Metamorphic rock which are foliates such a s gneiss are formed due to heating in the earth which causes them to be soft even though they remain in the solid state. This occurs during regional metamorphism