Which of the following is an example of extrusive rock that has cooled too quickly for grains to form?
a.
volcanic glass
b.
basaltic rock
c.
granitic rock
d.
all of the above

Rectangle qrst is shown. angle qrt is congruent to angle str, and angle str is complementary to angle qtr. which statement is true about angles qrt and qtr? they are congruent. they are complementary. they are supplementary. they are right angle