How long is radioactive waste from nuclear plants radioactive? 1.) 100,000 years
2.) 10,000 years
3.) 100 years
4.) 1,000 years

Which of these conditions most likely produces an unstable isotope?

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?