In general, the law of superposition states that in an undeformed sequence of sedimentary rocks, each layer

basically the same age
older than the one above it (my answer)
older than the one below it
thicker than the one above it

What role did the waterways of europe play in development of europe's economy

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?

Difference between shell and orbital