1. About 200 million years ago, 2. Cenozoic era, 3. The period between the extinction of the dinosaurs and the present day is called the Age of Mammals or Cenozoic. Mammals appeared on the earth long before the extinction of the dinosaurs
"People without ability or experience became officials" is some way political machines hurt cities.
<u>Explanation:</u>
A political machine is a collective where an influential leader or small group commands the resources of a supporter and business community that earns incentives for their actions. This success is based on the manager or group's ability to get out the vote on election day for their representatives.
In the late 19th century, many machines emerged throughout towns to serve U.S. immigrants who regarded machines as a means for political conquest. Often, political patronage may involve exchanging money for political assistance.
Because there needed to be legislation to rule the new country with. The Constitution was not yet written, and this was what was there instead. After the Articles of Confederation failed, the Constitution was instituted and enforced.
I cant decide between B and D i think it might be B
kathmandu was a single political unit during the early period of of malla rule but after the end of the yakshya malla it was divided into three states,namely kantipur ,patan and Bhadgaon. similarly , there were kiranti kingdoms in the east and tirhut in the south.