Question

question 20 of 28
which type of rock forms when liquid rock cools and hardens?
a. igneous rock
b. sedimentary rock
c. metamorphic rock
d. organic rock

Explanation:

Igneous rocks are formed from the cooling and solidification of magma or lava (liquid rock). Sedimentary rocks form from the accumulation and compaction of sediments. Metamorphic rocks are formed from pre - existing rocks that are changed by heat, pressure, and chemical processes. Organic rocks are formed from the remains of plants and animals.

Answer:

A. Igneous rock