When a nuclear power plant in has a meltdown how long must governments spend money to clean up keep radiation at bay?

Why did the settlement of east texas stop in the late 1710s

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

One result of recent migration trends is that the workforce in europe has become