A laboratory chemically separates out 50 mCi of pure Sr90 to use for research purposes. The Sr-90 is then stored in a vial for 48 hours prior to being used. What is the activity of Y-90 in the sample vial at that time?​

If the water vapor content stays the same and the temperature drops, then the relative humidity increases. its vise versa.if the water vapor content stats the same and the temperature rises, the relative humidity decreases. so, yes, i'd say that temperature and humidity have a strong relationship.

C) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.

Is there a picture or answer choices?