Final answer:
Tuff and agglomerate are two types of pyroclastic rocks found in the Cascade Volcanoes. Tuff is a light-colored volcanic ash with glass and pumice fragments, while agglomerate contains larger volcanic fragments.
Step-by-step explanation:
The two types of pyroclastic rocks found in the Cascade Volcanoes are tuff and agglomerate.
Tuff is a light-colored volcanic ash with glass and pumice fragments, while agglomerate contains volcanic fragments larger than 2 centimeters. Both types of rocks are formed during explosive eruptions, where solid fragments and ash are blown out of volcanic vents.