Granite is a coarse or medium-grained rock that is rich in quartz and feldspar. it is formed when bodies of magma cool and harden deep below the earth. what type of rock is granite?

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems