Of the elements Oxygen (O), Zinc (Zc), Copper (Cu), and lodine (1), which one would you predict to be a poor conductor of electricity and a brittle solid at room temperature?

Models are non-visual ways of coummincating how someone thinks about something in the natural world

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?