Which of the following is a primary cause of wind on earth? a. geothermal energy b. glacial retreat c. differential heating d. global warming

Exploration mission 2;

Physical systems is the answer

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.

The oldest is  found in the  west pacific and north-west atlantic.