What condition must be fulfilled in order for a virus to reproduce

Which of the following is not considered one of the four major oceans (1 point)

When you cross a time zone going east what happens to the time

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.