In which type of rock are fossils rarely preserved, and why?
Answer
Igneous or metamorphic rocks, because high temperatures and intense deformation destroy organic remains.
Igneous rocks form from cooled magma, and metamorphic rocks are altered by intense heat and pressure, both conditions generally unsuitable for preserving delicate organic structures.

Related Questions
What critical condition must an organism meet immediately after death to have a chance at fossilization?What type of environment is ideal for the rapid burial necessary for early fossilization?In the process of permineralization, what happens to the hard parts of the organism?How does the process of replacement differ from permineralization?What is the result when an encased organism dissolves completely, leaving behind an empty void shaped like the original?What chemical transformation leaves behind a thin, dark film of nearly pure carbon for soft-bodied organisms?In which type of rock are fossils rarely preserved, and why?What does the Principle of Superposition state regarding undisturbed rock layers?If a fossil cannot be dated directly, how is its age typically bracketed using absolute dating methods?What usually causes a fossil to appear cleanly split into two halves across a bedding plane after excavation?