10. Radioactive isotopes give off radiation that can be detected. This property makes them useful in which of the following ways?

A) as tracers in chemical reactions
B) in detecting leaks in oil pipelines
C) in diagnosing certain medical problems
D) all of the above

Ndhdheuebeugeyygeudb idb uf

Yes it is hereditary because of the penis

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach

You should never redesign your experiment. try and see what in your experiment you made a mistake on or try and test your experimemt with somebody else. see if they get the right results.