Whch was an important part of the northwest ordinance?
a. it required that townships set aside land for public schools.
b. it banned non-christian religions from all new states.
c. it allowed the ownership of slaves in all new territories.
d. it ceded the ohio valley to france and its indian allies.
only answer if you are above 80% i have been working on this for 30 minutes but cannot figure it out! , , me out.

they have different colored collars

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.