How was germany treated in post world war 1

What rights are guaranteed in the 13th,14th, and 15th amendments. why was it necessary to change the constitution to guarantee these rights?

Doing an exit ticket and i need some

Anoxia, or a lack of oxygen in bodies of water, leads to a. unsafe drinking water b. dead zones c. global warming d. algae blooms select the best answer from the choices provided. a b c d