D. a list of all your birthdays including the years...
Answer:
Bluetooth
Explanation:
Bluetooth is a wireless technology which has a transfer rate of 1 Mbps to 3 Mbps that to up to the distance of 10 meters.
In 2000's Bluetooth was used to exchange data without using wires or cables over short distances.
Nowadays it is not used to exchange data.There are more faster technologies present to do that now.But it is still popular to devices like speakers,headphones etc which can be connected by Bluetooth without using wires.
It uses UHF radio waves.
Data availability is the one related to the server being down.
Answer:
I think the disadvantages of using feedly is that people might now like switching over to use that or might not understand it.
Answer:
Based on these studies, the answer would be 4.
Explanation:
Parents do not care if a child knows a language they do not, and whatever else, etc etc. But number 4 gives a very good example of things to actually worry about when a child is using the internet.
