Which characteristics best identify differences between intrusive and extrusive rocks? check all that apply.

color
shape
texture
location
crystal size

It is crystal size that best identify intrusive and extrusive. Intrusive have large crystals and extrusive have medium size crystals

Explanation:

Intrusive rocks are cooled for magma, buried under the surface, this phenomenon creates larger crystal inside. On the other hand, extrusive rock are cooled from lava rapidly because they are located on the surface, this creates smaller crystals inside.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

the answer is otpion c) understanding

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