If a product contains bleach (peroxide), it will whiten your teeth. But not all treatments are created equal. It's the concentration or percent of hydrogen peroxide a teeth-whitening system contains and the amount of time it's in contact with your teeth that determines its effectiveness.
Definition of fecund - producing or capable of producing an abundance of offspring or new growth; highly fertile Definition of fecund - producing or capable of producing an abundance of offspring or new growth; highly fertile
No. We should define fecal matter. Fecal matter, or feces, is human  digestive waste that is removed from the body, preferably 1-2 times  a day through a process called defeâ¦cation. It has nothing to do  with unborn children (fetuses).