Hi there!
Question - What changes igneous or sedimentary rock into metamorphic rock?
Elite Answer - A heat and pressure
Why - Due to immense and heat and pressure it can change igneous or sedimentary rock into metamorphic rock.
Hope This Helps :)
Epiglottis
The epiglotis is what allows you to swallow food without inhaling it. It acts as a gateway between the digestive and respiratory systems