The mineral that is most abundant in Earth's crust is
a. quartz.
b. feldspar.
c. calcite.
d. pyrite.
b
You might also like to view...
Addition by 1. Components: Vector 
has a magnitude of 7.0 m and points 30° east of north. Vector 
has a magnitude of 5.0 m and points 30° west of south. The resultant vector 
+ 
is given by
A. 10.0 m at an angle 60° north of east. B. 10.0 m at an angle 30° east of north. C. 2.0 m at an angle 30° north of east. D. 2.0 m at an angle 60° north of east. E. 1.0 m at an angle 60° east of north
Earth is probably the only Solar System object with a liquid ocean.
Answer the following statement true (T) or false (F)
The region of the electromagnetic spectrum with frequencies just less than those in the visible region is the ______________ region
a. infrared b. gamma rays c. radio waves d. microwaves e. x-rays
According to the nebular theory, what are asteroids and comets?
A) leftover planetesimals that never accreted into planets B) chunks of rock or ice that condensed long after the planets had formed C) the shattered remains of collisions between moons D) the shattered remains of collisions between planets E) chunks of rock or ice that have been expelled from the planets by volcanoes