Select the correct answer. Which process is a physical change?
A.
iron rusting
OB.
milk turning to curd
water boiling
D.
paper burning
E.
hard water staining pipes

Idon't really understand the question. it counts for 20% of my lesson grade and i really need putting the answer into words. anything will . i need asap so im awarding 30 points.a disagreement between states of the united states concerning the rights of states vs. the authority of the national government led to the civil war. state governments were forced by war into a subservient position. what might happen if national governments ceded their authority to a world government by international treaty?

How do you think american life would change greatly, as soldiers went to war in europe?

All state and federal officials are required to take an oath to support the constitution. select the best answer from the choices provided t f