Please answer this question look at the photo

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?

What ocean lies to the north of both asia and north america

Acity experiences a heavy rainfall. days later, when no rainwater is present, rock, debris, and soil fall down a steep hill. which type of mass movement does this describe? a. creep b. landslide c. mudflow d. slump