Name some structures used for survival

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied