Which statement explains why nuclear waste materials may pose aproblem? (1) they frequently have short half-lives and remain radioactive for brief periods of time.(2) they frequently have short half-lives and remain radioactive for extended periods of time.(3) they frequently have long half-lives and remain radioactive for brief periods of time.(4) they frequently have long half-lives and remain radioactive for extended periods of time.

The correct answer is option (4)

Explanation:

Nuclear waste is a waste material left after the use of nuclear material in a nuclear reactor. The waste material left behind is higher in radio-activity that is the waste is radio-active in nature. This waste is highly toxic in nature.

Being possessed by radio-active nuclear substance they have long half-lives which allows them to be remain radioactive for extended periods of time.

Their ability to be remain radioactive for extended periods of time poses a great problem for the experts.

the answer is 0.8m.

by: nicholas