How are igneous rocks formed?
a. sediments deposit in a lake and turn to stone.
b. lava or magma cools and then crystallizes.
c. heat and pressure from nearby magma changes existing rock.
d. lava or magma heats up and crystallizes.

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?

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

The standard deviation of a population is 3.2.what is the margin of error? enter your answer in the box.