When you put the groceries away, you forgot to put the celery in the refrigerator. When you found it on the counter, it was soft and limp. How could osmosis help the celery? Explain what you would do and why it would work.

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?