Answer:Nicholas Steno first formulated the principles that allow scientists to determine the relative ages of rocks in the 17th century. Steno stated that sedimentary rocks are formed in continuous, horizontal layers, with younger layers on top of older layers.
Explanation:
Answer: what does this say haha
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Answer:
7.0 - 1.4 = 6.4
Explanation:
the pollution is increasing 1850 to1960 in a constant speed but from the year 1970 it start increasing very fastly
Human-housing types
Physical-all except political