Answer:
a. mobile phones
Explanation:
One day some engineers decided to change the course of history. Thinking of a way to make communication more efficient and easy, they had the brilliant idea of creating a system that would be capable of communicating between cordless phones. The idea was not bad, but the technology of the time did not help much.
The real history of the mobile phone began in 1973, when the first call was made from a mobile phone to a landline. It was from April 1973 that all theories proved that the cell worked perfectly, and that the cell phone network suggested in 1947 was designed correctly. This was a not very well known moment, but it certainly was a fact marked forever because it was the moment that facilitated communication for most people through the creation of the mobile phone.
Answer:
Initiative, Referendum and Recall are three powers reserved to the voters to enable them, by petition, to propose or repeal legislation or to remove an elected official from office.
Explanation:
The Mandate of Heaven (or Tian Ming) is a political doctrine that the Zhou Dinasty implemented to justify the rule of the Emperor of China. The main idea was that there should only be one ruler of the country and he was on charge with the approval of the gods as the "<em>Son of Heaven</em>". If the ruler was unfair or didn't serve his people well, he could lose the Blessing of the gods and was consider to be bound to be removed from power (The cases in which the King was overthrown, or the people suffered any kind of natural disaster or famine were considered signs that the gods have removed the Mandate of Heaven).
The least is 150 and the greatest is 40 hundredths I hope that I have help you
