Which one of the following is most likely to gain electrons when forming an ion? Al K
Cu
Br
Cr

Which feature do highland climates have that lower elevation areas do not?

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

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