What do scientist realize is driving changes in weather patterns

Changing solar distance
Changing earths climate
Changing rotation speeds
Changing earths internal radiation

they are all solids.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.