"# 4 - How do we know without a doubt the world is billions of years old ?"
"How do we know anything for sure ? We ca n't be certain of the Earth 's age in billions of years , but we can use carbon dating to figure out it 's older then 55,000 years , which refutes creationism ."
"know without a doubt the world is billions of years"
"but we can use carbon dating to figure out it 's older then 55,000 years , which refutes creationism"