Drag each label to the correct category.
determine which secondary sources are reliable and which are unreliable.
reliable secondary sources:
unreliable secondary sources:
1. encyclopedias
2. history blogs maintained by - renowned universities
3. personal history blogs
4. academic textbooks correct for plato

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.

thomas jefferson is the answer

c. the king has significantly abused the colonists' rights many times over a long period of time.

after defeating german forces in north africa allied leaders turned their attention to "italy," since this was the location that made the most geographic sense before invading northern europe via france.