Why does a year consist of 365 days and a day of 24hours.

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !

Which of the following countries was not an ally to the u.s.s.r. during the cold war? west germany poland romania cuba

The next best alternative given up when making a choice is called the a. opportunity cost b. comparative advantage c. primary objective d. negative consequence select the best answer from the choices provided. a b c d