Compare the sounds produce by wave A and wave B. The human ear would hear?

a. Wave A and B with the same pitch, but with wave B as louder.

b. Wave A as a higher pitched sound than wave B.

c. Wave A and B with the same pitch, but wave A as louder.

d. Waves B as a higher pitched sound than wave A.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.

they dont have any evidence