Science: Question Preview (ID: 31808)

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A property of rocks that tells its color when grounded into a powder
a) Streak b) Luster c) Hardness d)
The age of a rock when compared to another rock
a) Relative age b) Absolute age c) Half-Life d)
One of the four long stretches of time in Earth's history
a) Era b) Precambrian c) Cenozoic d) Paleozoic
These rocks form due to cemention of sediment
a) Sedimentary b) Igneous c) metamorphic d)
A property of minerals that tells how it reflects light
a) Luster b) Hardness c) Streak d)
The actual age of a rock
a) Absolute b) Relative c) Half-life d)
Igneous rocks that form underground
a) Intrusive b) Extrusive c) d)
The time it takes for half of a radioactive element to decay
a) Half-life b) Whole-life c) Medium-life d)
Igneous rocks that form above ground
a) Extrusive b) Intrusive c) d)
The oldest rock layer would be on the
a) Bottom b) Top c) middle d)
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