In which of the following cases does an atom have a positive charge?

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

What is the effect of returning nuclear reactor cooling water back into bodies of water?

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?