PLZ HELP!! Which wave has/will transfer more energy?? A or B??

Why aren't the stains like crystal violet and safranin washed away with water during simple staining?

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient