Christians adapted the roman basilica and used it for public worship. where in their churches did they place the altar? at the apse at the atrium at the nave at the narthex

Nave is part of the church, the basilica where the people stood during the religious service, while the narthex is the front entrance of the basilica, the front room before entering the nave. The altar was in the apse which was facing the east, opposite to the entrance of the basilica on the west side. Altar is the place where the sacred ritual was performed, in the apse of the semi-spherical shape.

The answer is: at the apse.

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.

i really really really really really really dont know