During a lightning strike, why is lightning seen before thunder is heard?

At which point on the diagram do convection currents occur to drive plate movement?

Which type of seismic waves are confined at the surface

This phrase from the declaration of independence and its primary author thomas jefferson can be used to justify which statement? a) jefferson thought this document could be used in his defense were he put on trial for treason. b) jefferson knew that the colonists' actions would have an international impact. c) jefferson believed that a bill of rights was necessary in the new government. d) jefferson was trying to show the king that the colonists were intellectuals.