Describe two pieces of evidence that the earth is 4.4billion years old

The abundance and variety of fossils in Phanerozoic rocks have allowed geologists to decipher in considerable detail the past 600 million years or so of the Earth’s history. In Precambrian rocks, however, fossils are rare; thus, the geologic record of this important part of the Earth’s history has been especially difficult to decipher. Nonetheless, stratigraphy and radiometric dating of Precambrian rocks have clearly demonstrated that the history of the Earth extends billions of years into the past.

I can try? So the 1st one I think the answer is ‘contaminating...” -that one. The 2nd is “of pollution...”- that one. The 3rd is “the flowering plants...”- that one. The 4th is “the plants that could tolerate...”- that one. And then the last is ‘a population only...”. Hope this helps or works!