Worldwide, the three main tidal patterns that exist are diurnal tides, tides and mixed tides

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

B? i feel like this is a trick  

Answer two atoms of oxygen;