Why would you expect the crystals in an intrusive rock to be larger than the crystals in an
extrusive rock?
a. the crystals in intrusive and extrusive
rocks are generally the same size.
b. intrusive rocks cool more rapidly, which
produces larger crystals.
c. intrusive rocks cool more slowly, which
produces larger crystals.
d. the chemical composition of intrusive
rocks produces large crystals.

C. Intrusive rocks cool more slowly, which produces larger crystals

Explanation:

Intrusive rocks are igneous rocks that form beneath the surface. Unlike extrusive rocks (rocks that form above the surface), intrusive rocks cool down more slowly, so this allows crystals more time to grow before they completely cool down and solidify.

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

b.