The principle of which relative dating can be used at Siccar Point in Scotland to determine that the rocks below the unconformity were tilted to vertical before erosion occurred is the o<span>riginal horizontality. Thank you for posting your question here. I hope the answer helps. </span>
Answer: What grade is this for
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Explanation:
Using a few inexpensive, energy efficient measures can reduce your energy bill and, at the same time, reduce air pollution. Heating and cooling systems use more energy than any other systems in American homes. Natural gas and electricity are used to heat most American homes, electricity to cool almost all.