How did the physical environment of river valleys negatively impact ancient civilizations? The land was attractive to outside invaders who wished to conquer the land. Rivers prevented the people from moving because they could not cross them. Occasionally, extreme flooding caused great damage and killed many people. Silt in the rivers made the water dirty and possibly unsafe for people to drink.

Rivers prevented the people from moving because they could not cross them.

Explanation:

answer: administrative medical assistants are trained professionals working in a role that requires them to provide customer service when working with patients, as well as administrative support for medical facility staff.

with the mandates put in place by hipaa and jacho, administrative medical assistants must also stay current on all regulations and policies regarding the collection, storage, and dissemination of sensitive patient data.

administrative medical assistants are responsible for a multitude of tasks that include communicating with patients, scheduling appointments, electronic medical coding, filing insurance claims, maintaining records, as well as accounting and billing. administrative medical assistants are key players in providing healthcare facility support services. they are responsible for everything from making sure medical records are accurate to ensuring that medical facilities run smoothly.

explanation: muahahaha

sorghum farming likely spread with the bantu migration. there is your answer i had to get it wrong to get this right so i hope ya'll enjoy!