1) An igneous rock that forms from long, slow cooling will be characterized by
no crystallization
well-rounded pebble-size sediments
large, well-defined crystals
small crystals aligned in parallel bands
2)Changes to rock over large, wide areas are most likely due to contact metamorphism.
True
False
3) By which principle do we know that the rock layers on each side of the valley were originally joined together?
4) Fossils can tell us what types of organisms lived where but they cannot be used to study other factors such as climate or geography.TrueFalse
5) Which of the following terms best describes the nucleus of a radioactive element?
unchanging
explosive
unstable
energized
6) Patterns in tree rings most often represent
climatic conditions in which the tree grew
the age of the forest in which the tree grew
the specific type of tree species
the presence or absence of insect pests in the forest
7) According to the fossil record, when did anatomically recognizable humans appear on Earth?
2 million years ago
200 thousand years ago
20 thousand years ago
12 thousand years ago
8)
Coal and oil shale are formed by
the accumulation of sediments from basaltic rocks
the decay of sea animals that lived near the ocean surface
the remains of ancient sea animals that lived at the ocean floor
the remains of ancient plants that were compacted and subjected to heat
9) Which type of sedimentary rock is characterized by very fine-sized (less than 0.002 mm) clastic particles?
conglomerate
shale
sandstone
coal
10) Tectonic plates are able to move because of
sliding of the continents toward the oceans
gravitational differences between different parts of the Earth as it revolves around the Sun
relatively dense oceanic crust sinking into the weak asthenosphere at subduction zones
the sinking of the continents into oceanic crust at the mid-ocean ridge
11) Continental crust is younger than oceanic crust because it is constantly recycled by subduction processes.
True
False
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