Types of vinegar that does chemical reaction

Which type of fossil does this image depict?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium