Answer:
A scientist’s presentation of experimental results at a scientific conference
Explanation:
Oxygen-16 and Carbon-12 are stableisotopes of elements O and C respectively. Hence, they do not have half-lives. But Carbon-14 andUranium-238 are radioactive isotopes. Among them Carbon-14 has relatively short half-life as about 5730 years while Uranium-238 has a long half-life as about 4.5 billion years.
Answer is. uranium-238
The answers A , A matter of minutes :))
Answer:
C
Explanation:
all of them have negative effects on the enviroment as a whole but C gives no reason why it would be a consequence
