Can anyone help me with these three questions?

The answer is 1-plate movement along fault lines

The geographic feature in the westernmost corner of kenya is answer: the great rift vally

Ibelieve it was because of the gas act in order to preserve fuel 

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.