Cellular phones have had a major impact on our lives and the way that we perform every day tasks. Many of these changes are apparent, while others we may not even be aware of.
Cell phones have brought a whole new meaning to the term multitasking. Twenty years ago, it was not possible to talk to the office while you were at the grocery store picking up some necessary items. You could never have had a three-way business conference while you were fixing dinner or been able to deal with a business client from home while caring for a sick child.
Soft and hard copies in my opinion
Answer:
They can be used to compare a certain region before and after disaster.
Explanation:
I believe it is Control unit..
Hope this helps!
