Vinegar with salt.
lemon juice, because it has antioxidense!>*^#$
well add juice to the penny
vinegar
This works better than any of them- Baking soda mixed w/little water into a paste, scrub with toothbrush, rinse.
There is not any kind of liquid that can make a plant grow faster just use water that is the best kind of liquid there is for a bean plant.
It depends on what kind of 'powder' it is.
woman
All bamboo cleans the air to a greater oor lesser degree.
step 1:have cups for the juicestep 2:pour the juice in the cups, pour juice half waystep 3:drop in pennies that are dirtystep 4:leave pennies for a while like 20-30 minutes to let chemicals come togetherstep 5:take out the pennies and compare them to see which is cleanerstep 6:you have completed the procedure
penny bath
3d whiting (crest)
A window viper would be the your answer !