EXERCISE 8A. LAYERS OF ROCKS
A. Directions: Complete the paragraph by filling in the blank spaces with the appropriate words or phrases
inside the box. Write your answer on the numbers below the box.
The rock layers is formed by _(1). of mountains and the particles is transported and ___(2)___ in the
sedimentary basin, then the sediment particles is cemented over hundreds of years to form layers.
These sediments
are deposited horizontally by (3)___..Layered rocks may also result from successive lava flow or from the
formation of
_(4). Most of the
rocks which are exposed
at the surface of the earth are called sedimentary
rocks. Sedimentary rocks are formed _(5)
__and (6) _ and the(7) is piled one on top of
the other. Thus, in any sequence of layered rocks, a given bed must be older than any bed on top of it. This
_(8) _____ is fundamental to the interpretation of Earth history, because at any one location, it indicates the
relative ages of _(9) and the
_(10)_ _in them.
bed by bed
gravity
fossils
layers
extrusive igneous rocks
particle by particle
rock layers
deposited
Law of Superposition
erosion and weathering