Can Coronavirus be spread through food?

I've seen people cleaning their phones with alcohol-based sanitizers after coming home, but is that really necessary? It seems like a bit too much, but I'm not sure whether to do it or not.

Should I worry about myself if my pet caught corona? Im confused whether it is transmissible from animals to humans and the other way around...

is COVID-19 stuck in the air?

How long does one need to wait to actually see the symptoms of COVID-19, or for the tests to be able to detect virus?

How should I use masks? Many people say it should be used only once, other people just wash it with alcohol and use it again... What is the proper way to use masks?

Is COVID-19 really that dangerous? Are we supposed to be worried and extra careful about all we do even though we have a normal immune system?

How long does corona stay in an individual? If I was to get corona, for how long should I quarantine myself and when should I expect to get better?

What should I do if I needed to travel to another country?

What is the difference between Coronavirus and a normal flu?