Help me please Use percents. An energy pyramid shows that 90 percent of the energy is lost from one level to the next. If you start with 100,000 units of energy, how much energy does the next level get?

Which native american tribe allied with the spanish?

This is a picture of workers in a factory. why was this picture most likely taken? to advertise that kids could get jobs to expose the horrors of child labor to show pride in children at work to show that night workers were needed o

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?