4 ms·
It is still contaminated because the half live is 30 years. After 35 years it is half as strong. In 350 years it will still be contaminated but it would have
by ipaddr 6y ago
It is still contaminated because the half live is 30 years. After 35 years it is half as strong. In 350 years it will still be contaminated but it would have halved 10 times.
- fastball 6y ago*300 years