overcrowding, poor sanitation, spread of diseases, and pollution
It made the state number even so there were an even number of slave states and non-slave states. It also abolished slave trade in Washington, d.c. becasue many people were angry about there being trading there.
Answer: Until this century, relative dating was the only technique for identifying the age of a truly ancient object. By examining the object's relation to layers of deposits in the area, and by comparing the object to others found at the site, archaeologists can estimate when the object arrived at the site. Hope this helps!
