Smokescreens are often used by the army. It lets soldiers get across open roads without being seen. If the soldier would cross the street without a smokescreen, he might get shot by a sniper.

Titanium can be found in compounds such as titanium dioxide (TiO2) used in sunscreen, paint, and food coloring; titanium tetrachloride (TiCl4) used in the production of titanium metal; and titanium sulfate used in the treatment of water and wastewater.

When Jesus spoke about being "born again," he was referring to a spiritual rebirth or renewal that comes from accepting and following him. This new birth signifies a transformation of the heart and a new life in Christ, leading to a deep relationship with God and living a life in accordance with his teachings.