What is number system??

Whats are the different parts of no verbal comunication, especially body language?

Develop a function to create a document in the mongodb database “city” in the collection “inspections.” be sure it can handle error conditions gracefully. a. input -> argument to function will be set of key/value pairs in the data type acceptable to the mongodb driver insert api call b. return -> true if successful insert else false (require a screenshot)

Are special combinations of keys that tell a computer to perform a command. keypads multi-keys combinations shortcuts