What does it mean to "cull" a livestock animal?

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

How many inches of snow did any of you guys get last night?

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?