Predictions about the future based on the position of planets is an example of physics biology earth science pseudoscience

An occluded front moves over the farmland that has been experiencing drought conditions. what change in weather will this front likely bring? a. gray skies, but no rain b. an extended period of rain c. more dry air and sunny skies d. violent, short-lived thunderstorms

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

Which is an example of a reversible physical change?