Answer:
I am certain the answer is A sorry if im wrong
Explanation:
Crude oil: Through drilling wells
Coal: Through surface and underground mining
Natural gas: Through hydraulic fracturing
Answer: B. Temperature of 35 degrees celsius
Explanation: It is highest at the point between 30 and 40, which is where it's activity is the strongest.
Uranium-238 is found only in igneous or volcanic rocks. They can date a very ancient fossil also but carbon cannot date and ancient fossil. Trees are not very ancient. Carbon-14 can be used to measure only fossils of recent age.