At which position of earth northern hemisphere has coldest day​

What first caused people to consider that the continents were once one large landmass?

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.

Can someone answer all these questions i need it done by tonight. once again