Most people in the US have a cell phone.
There are many cell phone manufacturers scattered world wide. The most popular ones are: US, Canada, UK, Japan, Finland and China.
Generally, you are allowed to bring food such as bread to the US from Canada. There are other foods however that are not permitted.
No!
no
Black coral is an endangered species and it is illegal to bring it into Canada and the US.
Contrary to popular belief, Canada is technologically on par with the US. In some cases they are even more advanced. Of course they have cell phones.
The number for emergency services in Alabama is the same as the entire US & Canada, it's 9-1-1.
No - usually the mobile networks will do all the 'hard work' for you.
yes
You can, but it costs extra money from your account.
In the US it is only AT&T.