Charcoal samples from Stonehenge in England emit 45.1% of the disintegrations per gram of carbon per minute expected for living tissue. What is the age of this charcoal? A. 3550 years
B. 6580 years
C. 4410 years
D. 9190 years
Please help!!!

All of the following are part of the biosphere except

What is a metal replacement reaction

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's