The balloon has to be made out of old truck tiers at lest 20 ilb
Nolur acil lütfen yalvarırım yalvarırım lütfen yalvarırım when should you integrate technology?
Answer:
PSTN
Explanation:
The full form of PSTN is Public Switched Telephone Network. It is a traditional circuit-switched telephone network which is used by the several regional, local or national telephony operators. They came in used in 1800s. It is a form of communication among the people which works with the help of underground copper wires.
In the context, when I am travelling through the metropolitan as well as the rural areas of the North America, the PSTN provides the internet connectivity in all the places. It helps me to communicate with the other people with the help of a telephone.
Answer:
1. Wall clocks.
2. Analog watches
3. Measuring instruments with callibration
Explanation:
