Answer:
___I__22. paper
___I__23. glass
___C__24. iron
___I__25. plastic
___C__26. gold
__C___27. copper
___I__28. wood
___I__29. Rubber
___C__30. Aluminum
Materials which do not allow current to flow easily are called insulators.
Materials which allows current to flow easily are called Conductors.
Answer:
Changing the customer number on a record in the Orders table to a number that does not match a customer number in the customer table would violate referential integrity.
If deletes do not cascade, deleting a customer that has orders would violate referential integrity.
If deletes cascade, customer can be deleted and all orders for that customer will automatically be deleted.
HTTP or HTTPS is most likely the answer you are looking for.
Answer:
does your toothpaste have salt?
Answer:
Back up the user data to removable disk
Explanation:
Before you work on a computer, especially anything that has to do with files not accessible, this might need to format the system because it might either be a virus or other forms of malware. Since backup was done to a different logical partition on the disk, the first thing to do before performing any diagnostic procedures on the disk is to back up the user data to a removable disk in order not to lose the information in the system.