Which of the following is a set of techniques that separates molecules based on various characteristics? A. Precipitation
B. Centrifugation
C. Filtration
D. Chromatography

I think it’s b) Centrifugation. I searched it up and it says “Centrifugation is a technique used for the separation of particles from a solution according to their size, shape, density, viscosity of the medium and rotor speed.”

A125feet i th answe

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.