Answer:
As the uranium in rocks decays, it emits subatomic particles and turns into lead at a constant rate. Measuring the uranium-to-lead ratios in the oldest rocks on Earth gave scientists an estimated age of the planet of 4.6 billion years.
Simple Geology really.
Actually I just took the test and the answer is C. Protestants
True ) although it’s not 100% proven it has been theorized that greenhouse gasses are the cause of global warming
A stream of river that runs into another stream or river is called a tributary.
