Which of the following changes igneous or sedimentary rock into metamorphic rock?
a.
heat and pressure
b.
heat and weathering
c.
water and weathering
d.
water and pressure

Astate of matter all that has define volume and can flow is a(n)

An object's buoyant force and weight mean the same thing.a. trueb. false

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up