Compared to the continental crust of central North America, the oceanic crust of the Mid-Atlantic Ridge is

Lol why dont you actually do the work instead of have people do it for you. jk i do it too lol

2pi more meters because you find the circumference which is 6pi and 4pi and subtract it and you get 2pi

The correct answer is a.

If a particular resource is not useful or needed then the price would be considerably low. once that resource is needed the price or value will raise depending on how useful or needed it is especially if the resource is low in quantity, the consumers would pay whatever they have to, to get that material.